Smog pump symptoms. Early versions were driven by a single V-belt.

Smog pump symptoms. Jun 12, 2008 · The smog pump on my grandad's 1991 F150 5. If your vehicle is equipped with a pump air injection system the technician will be checking for the proper connection of the injection system plumbing, all hoses, lines, valves and smog pump. Of course, it can lead to power loss, idling issues, or stalling during cold starts. Jun 7, 2020 · 1987 - 1996 F150 & Larger F-Series Trucks - 5. But what do I do? Thank you in advance PS It has a 460 ci engine. My 2005 has had it for about 2,000 miles and I don't want to spend another $1000 right now. Article by Mark Trotta Introduced in the 1960's, automotive AIR pumps, also known as smog pumps, are powered by an engine-driven belt along with other accessories, such as alternator, power steering pump, and air-conditioning compressor. Checked codes, got "air injector valve stuck open" and "valve stuck closed". i swapped out both parts valve and pump. It is starting to whine again and I have Jul 12, 2017 · In "limp mode" due to air injector issue. I've looked for a replacement pump and no one has them. Code says P2445 Secondary Air Injection Pump Stuck Off. If the injection pump begins to fail, since it is a vital part of the emissions system, a fault code will be triggered. The pump sends hot air and oil/condensation mist into intake. Oct 1, 2024 · During cold engine operation, the pump directs excess hydrocarbons back into the engine for re-combustion, promoting complete combustion. What are the symptoms of a bad smog pump? One of the first symptoms of a bad or failing smog pump is a rough running engine. 8L in a truck that had severe rust damage to the manifolds and air injection tubes. It’s sucking air on a cold start and seems like it actually works on cold starts, unlike how it didn’t before changing it. 8 issues after egr and smog delete - Hello! I recently deleted my smog pump and egr system. 2006 is about right for a daily driver to need either/or/and blower, hose, and check valve maintenance. I checked it with the code reader at a local shop and the guy confirmed it, code P2240 "Air Injection Switching Valve Stuck Open Bank 1. One goes on intake manifold on left side. Then unbolt everything. Jul 11, 2024 · 1987 - 1996 F150 & Larger F-Series Trucks - smog pump air diverter valve - I took my smog pump off to inspect, clean things up a bit. Doesn't matter if it's cold or warm. R. Feb 17, 2014 · 1987 - 1996 F150 & Larger F-Series Trucks - 5. This truck is in good shape but it sits a lot. This week, i decided to fix it, i bought a new smog pump and a new check valve. Jul 18, 2010 · The smog pump is for pumping additional air into the exhaust to help with emissions. Checked for usual things, pump works. Symptoms include check engine lights and failed emissions tests. Mar 9, 2025 · The first step in replacing an air pump is to remove the whole pump and bracket assembly from the engine. This guy only drove for 10 minutes - just think if he continued driving longer. I have removed the belt and found a ever so slight noise in the smog pump. And you likely have far more issues with this car than just a bad AIR pump given the symptoms you describe. For proper function, ensure the replacement engine includes the smog pump assembly and related sensors. I have a 5. The most common symptoms include: Backfiring- If the AIR system is not running right, the extra fuel vapor in the exhaust can combust under hard acceleration. cities, counties, and zip codes on our site: City-data. (Do you know the correct belt size for this app? Or is it a better idea to replace the pump? Are they fixable? We sprayed wd40 inside of it, hoping it would unlock without taking Dec 28, 2015 · For my clarity, is the Secondary Air Injection Pump the same as the air pump that sounds like a jet engine? I'm thinking now that it is. We were still required to smog it again before selling it. The E320 wagon keeps tripping the CEL for P0410. 99 10 currently in stock direct bolt on. 0L V6 17610-0W020 17610-0W020 Soylent Green2012, Dec 28, 2020 #6 Sep 20, 2011 · Diverter Valve: (behind the passenger cylinder head on the V8's) Redirects fresh air from the Thermactor Air Injection Pump (smog pump) between the ports in the cylinder heads and the port in the exhaust pipe. May 13, 2016 · One of the first symptoms of a bad or failing smog pump is a rough running engine--Reduced horsepower; Check Engine Light comes on. When a smog pump fails the finely tuned air-fuel ratios can be upset, and it will negatively affect the performance of the engine. It stopped, the belt kept spinning over the non-moving pulley, and burned through. I left everything hooked up electronically. Exhaust gases are at their hottest, as they leave the combustion chambers. If you remove the pump, you should move the vacuum advance vacuum line to a manifold vacuum port to get correct timing at idle. Tried to get seller to refund since he didn't provide me with smog papers Well he hasn't been Oct 16, 2016 · I just had my car smogged, few days before expiration day, with the money, then got a "notice of incomplete renewal" from the DMV saying Jan 3, 2013 · The people they say all of California requires smog checks are wrong. The EEC-IV computer controls this flow of air from the smog pump DURING engine operation based on temperature and throttle position. Need to remove the plastics from right side. I did that myself to save some money, and well, the pump works now. So my question is should I delete the smog Jul 6, 2000 · The bearing are going out in the smog pump, the worst case scenerio would be the pump seizing up, causing the belt to get hot and maybe snap from the rubbing. Jun 11, 2007 · C4 Tech/Performance - lt1 air pump - ok here it goes I have a 1996 vette lt1 auto is their any way to remove the electric air/smog pump on driver front corner? if so what all do i need to do it? any information would be appreciated. 0 has locked up. What are the symptoms of a bad air pump? Reduced horsepower. It's the accessory on the sepentine belt directly below the alt. The smog pump was going bad. Really cheap. The only thing you will save is the parasidic lose the pump creates, maybe 3-5 hp. If you get this code, see if you can hear the air injection pump running. The air injection smog pump pushes air into the exhaust system right after the exhaust manifold, to help intercept and burn those unburned fuels. Reduced horsepower Can a diesel car Jul 25, 2024 · Learn the signs of a bad secondary air injection pump, what causes it to fail, and how much it might cost to replace it. I got an engine light code P0410 which told me I needs to replace the secondary air pump, or smog pump and the relay as well. It tells how to test each device & circuit so you'll know where the problem is. It took me a couple Jul 27, 2020 · For those that want to change or having issues with a seizing air pump/smog pump the part number is Ultra power part#306010 for the motor base assembly only $85. What does a secondary air pump do? A secondary air injection pump (also known as a smog pump or SAI pump) serves to reduce carbon emissions emitted from a vehicle’s exhaust. The smog pump's mechanism involves a belt-driven or electric motor to power the vane pump, which draws in air through a filter to prevent dirt contamination. I would like to delete off all the emissions/smog stuff I can without causing a check engine light or adverse running, I know you have to keep the EGR system. Sep 30, 2016 · A faulty secondary air injection pump can result in increased emissions, engine performance issues, and an illuminated Check Engine Light. Because your evaporative leak detection pump is an important part of your car’s emission control system, your ability to keep your vehicle smog-legal can be affected. For the Smog Test: During the visual inspection portion of the smog test the smog technician will be inspecting your vehicle's air injection system. the mileage Aug 17, 2010 · C4 General Discussion - Symptons of a bad AIR pump - I am curious to know if the AIR pumps ever fail and if they do, are there any signs, other than not pumping air. IMOA. 0/429 Emissions/Smog Delete - I have a 1997 F700 7. People toss pumps all the time, get another used one in the for sale section. May 18, 2013 · it has me so frustrated that ive spent hours looking up how to delete the whole smog pump, since that looks a lil too time consuming and i dont have the tools to do that right now, i wanna fix the pump, or strip the guts. Get the air pump check valve's role in your vehicle's exhaust system, symptoms of failure like Check Engine Light, and essential repair advice on RepairPal. Sep 12, 2023 · Learn the symptoms to help diagnose a bad secondary air injection pump, common causes of failure, and the replacement cost to get back on the road. Engine is running rough. How does this pump actually work and how can you troubleshoot if it shows warning signs of going bad? We’re going to discuss the basic functions of this pump and how to find the issues to control the rate of exhaust emissions. If a secondary air pump is making unusual noises or fails, this is often due to the secondary air valve being stuck and no longer fully closing. I would suggest using a smog pump delete kit (bracket and pulley) so you can use stock belt. So like the title says, my air pump locked up on me. Dec 28, 2020 · I see that Amazon has the knock off replacement pump for 2011 to 2015 4. I have to remove that pump the noise will drive you crazy. Too much time and trouble for your mechanic to rebuild. After looking online I saw it's a pretty common problem on Toyota with the secondary air injection pump seizing. 7L 4cyl gets a CEL. Amazon part number $134 17610-0W020 NOVAPARTS Secondary Air Injection Pump Smog Pump Replacement for 2012 2013 2014 2015 Toyota Tacoma 4. May 5, 2024 · It is really easy to remove the smog stuff. To do this, remove the four bolts and push the two retainer pins from the back cover using two blocks of wood. It supplements the primary air intake by directing extra air into the secondary air injection system, facilitating crucial emissions control processes. whatever's easier. However, like any other mechanical part, it can run into issues that can affect your vehicle’s performance and efficiency. Those who recognize these symptoms are often able to quickly diagnose the issue at hand, thereby restoring their vehicle to proper operating condition in short order. All vacuum lines and tubes and check valves were removed to the smog stuff except the one coming out of the exhaust (will take it to the exhaust shop to remove that) egr and all smog relays are still intact. Check engine and traction control lights on. Jun 16, 2022 · 1987 - 1996 F150 - 1993 F150 5. 8L Smog Pump Delete with Pics - Everyone seems to ask this question, but I don't see any picture threads so I thought I'd share what I did on my engine. But apparently, it was a major problem already six years ago and the population has Jul 3, 2019 · What are the symptoms of a bad smog pump? 1. Secondary air pump not working after cold start? Is there a burnt smell from the engine compartment? Are the electric contacts of the secondary air pump charred? The secondary air pump may have failed due to overload. Every other pulley is quiet. You can read about how this happens here. Aug 11, 2016 · Please register to post and access all features of our very popular forum. Aside from those symptoms, the idle RPM may also be slower, even to the point of stalling the engine. If you’re experiencing some strange symptoms or warning signs, it might be time to take a closer Jan 25, 2024 · What Happens When the Secondary Air Pump Fails? A secondary air pump failure will not be the end of the world, simply because it is not the main air intake. In the process, I took off the air diverter valve that connects to the pump. Here are the signs of air pump valve failure in Subaru. Bike You can easily recognise a bad secondary air pump only if you know the symptoms to look out for. 3" exhaust. Solenoid activates and clicks as it should. Aug 13, 2014 · Ford Inline Six, 200, 250, 4. May 12, 2014 · This is really starting to point to that smog pump relay that even the C32 AMG guys complain about too. Jan 8, 2020 · The smog air pump on my 1996 E350 Chateau is bad and making a loud squealing noise. ~195,000 miles. There is vacuum when solenoid clicks. 8?? Last edited by aluminumpuppy; Nov 10, 2008 at 12:14 AM. Did some research and apparently this 5 cent piece of foam is the cause of everyone's headaches. 79 or SKP PART# skap913060 $94. Detailed information about all U. 6, called and they said it would) for ~600, fully replacing both Customer: Can I remove the EGR valve, vacuum box, and lines for the smog pump from my 1996 F250 7. I just about finished with a classic Aug 30, 2025 · “Leno’s law” to ease smog checks on older cars stalls out in California legislature Former Tonight Show host sought to end smog checks for Nov 29, 2016 · Bought a car last month and it failed smog. Nov 28, 2022 · I’m in need of some assistance finding out which exact cities do not fall with in smog emissions testing in AZ. If it's changing ownership, a smog certificate is required. It uses a blower, hoses, check valves, and electro-vacuum in its operation. Over $68,000 in prizes has already been given out to active posters on our forum. 0 liter v6 for $89. Got it scanned, mechanic said possible issue with air pump, cleared it and it was fine for a few days. Also he tends to lean more towards a turbo seal or head gasket. My auto repair skill level - good enough, usually. my bearing in my smog pump was going bad, so i bypassed the smog pump. I open the Jan 4, 2016 · A bad air pump check valve may create exhaust fume odor, fail your car's emissions tests, and turn on the Check Engine Light. Oct 5, 2018 · I've seen a couple of posts about the "secondary air injection system switching valve" issues. We actually sold a Vette in Ca one time that the smog certificate was less than 3 months old. Let’s jump in and see what symptoms to watch for. The system is critical to help cars achieve government emissions standards. Mar 13, 2020 · A secondary air injection pump is a part of the automobile exhaust system. When the relay fails, it can do some weird things with the pump, sometimes even keeping it on until the pump fails, or the 40 amp fuse blows. Jul 4, 2025 · This video demonstrates how to rebuild your Smog or Air Pump, which can be done in about 15 minutes if starting with a working pump. Additional giveaways are planned. 2. Pump failure will also affect the emissions output of your vehicle. Nov 10, 2008 · Smog pump elimination on a 5. Mar 8, 2025 · When a smog pump fails, the finely tuned air-fuel ratios can be upset, negatively impacting the engine’s performance. 8 smog delete question - I have a 1996 f350 with 5. Apr 11, 2005 · The smog pump was left in the engine bay and with the belt on it, but the end that joins to the exhaust was just tacked to the pipes to keep it from rattling. Common symptoms of a bad smog pump include a rough running engine, a failed emissions test, slow acceleration, and decreased overall performance. Feb 27, 2019 · 2013 Tundra 4. All stock. Nov 29, 1999 · My smog pump got REAL noisy right before it locked up. 5 460, and will the truck run fine? Think your water pump is failing? Here is the list of symptoms to look out for when trying to identify a bad water pump. If these symptoms occur in your vehicle, you need to replace a new secondary air pump. Checked the secondary air valves, both of them open as they should. Can you remove the secondary air injection May 23, 2025 · Symptoms Of A Bad Secondary Air Injection Pump When the secondary air injection pump fails, you will notice the Check Engine Light. After watching some videos I decided to clean the valves. Other on pipe on top of valve cover. Rich condition Equinox P0411 Diagnosis Mar 4, 2022 · A. Symptoms: Rough idle/misfire. 79. Buy some vacuum caps as in picture. " He told me he used to work for Toyota and knew Sep 23, 2011 · 1987 - 1996 F150 - smog pump issues - What kind of problems can a bad smog pump cause. One of the first symptoms of a bad or failing smog pump is a rough running engine. Nov 6, 2006 · Ok, I had an 0410 dtc come up on my '02 c5. Read on to find more about it. Twice I replaced the smog pump with a remanufactured unit from autozone The first time it locked up on me while I was out of state and the second time was luckily in my driveway. Being that our LT1s are getting "up there" in age - the valves that the AIR pump uses can fail. I haven't read anything about the specific problem I'm seeing. 8. Jan 12, 2019 · Hi there, are the no smog counties still no smog in 2018? Also, if I will move to Cali, can I just take my out of state car (35000) miles directly to Jun 18, 2018 · Do I need a smog test within 90 days in CA to sell to a dealership or Carmax? I know that the California DMV requires a smog certification within the Apr 16, 2015 · Never actually having lived in Boise, I've never seen smog there. It is free and quick. It also leads to a failed emissions test, slow acceleration and overall decreased performance. now my truck idles rough and surges. Apr 16, 2019 · P0411 Symptoms: Chevy Equinox P0411 can cause a few symptoms, and can affect the drivability of your Equinox. Removed valves (broke the right one! Argh) and started If your secondary air injection system (also called the smog pump) has stopped working, here is what you can do to diagnose it. The engine may have trouble idling, and may drop in engine speed, or stall when the pedal is pressed. Dorman has discontinued them. It reduces harmful exhaust emissions at the time of a cold start phase. Feb 10, 2003 · bad smog pump= run bad? Stop spending money on parts you don't need and buy a digital multimeter & a Haynes manual. Only code i get now is P0411. You can feel it in the truck and you can see the engine shake. Nov 10, 2016 · So on Monday my 06 Tacoma 2. 4wd, ZF5 swap from the M5OD. I don’t know what the differences in the pumps are but the brackets are different. S. Mine is working, but seems to be noisy and I am wondering if its on its way out. Smog pump, associated solenoids deleted. He suggested just plugging off the vacuum pump and see what happens. If the valve fails, it lets HOT EXHAUST GAS out into the rubber hose which can catch fire / melt. Smog testing is the only real worry when removing the cats or the pump. Feb 11, 2025 · The air injection pump is a crucial component in your Tundra’s emissions system, designed to help reduce harmful emissions by injecting fresh air into the exhaust stream. On Wednesday night after sitting all day, I turn the truck on, CEL is on again. Time for a replacement or is there a little life left in it? Thanks. (obsolete for Air Injection Reactor) ("smog pump") sends fresh air to the exhaust ports for XX seconds after cold start to quickly light off the cat. I changed out all of my vacuum lines and my truck was running great. I put 2 bolts with copper washers in each head to block off the cross over pipe Damned good reason to delete your AIR pump if you haven't already. Jan 23, 2020 · Valve failed or seized causing water to get to the pump which too failed. Feb 22, 2023 · Having problems with the canister purge control valve? Here are the most common symptoms of a bad canister purge valve and replacement cost. The pump should only come on when the engine is cold started and should Apr 2, 2025 · 1987 - 1996 F150 & Larger F-Series Trucks - Smog air pump locked up - options? - 1991 F250 Lariat 460 auto with AC, 120k miles approx. What sucked is, it only started making the noise about 5 minutes befors siezing. This video will cover most mercedes from the 90s up to the mid 2000s Oct 23, 2012 · Removing the AIR pump will increase your unburned hydrocarbons at idle, which is an issue if you still need to be smog checked. 79 right and Ultra Power P# 332504M complete unit $102. Sep 11, 2013 · 1987 - 1996 F150 & Larger F-Series Trucks - 4. Regularly inspect check valves for blockages or leaks and maintain the air pump to prevent premature failure and costly repairs. This includes removing the bolts on the bottom side of the alternator bracket and the two bolts on the lower side. May 6, 2021 · Large Truck - 1997 F700 7. The left valve had a tremendous amount of junk in Dec 18, 2020 · Hi! Just plug holes behind the heads, plug where the pumps dump to the exhaust behind the y pipe, remove associated tubing from the pump to the heads and to the passenger side fender. I. I looked for a bracket with an idler pulley to replace the pump and can't find one either. This is commonly due to excess pressure that builds up inside the smog pump when the diverter valve is unable to distribute the pump's air supply. How much did the parts cost when you did it yourself? Product description Secondary Air Injection Pump Replacement for Mercedes-Benz C300 E350 SLK350 0580000025 0001405185 What is a Secondary Air Pump? The secondary air injection pump (also referred to as a smog pump or SAI pump) is responsible for lowering the number of carbon emissions that come out of the tailpipe of a vehicle. Jul 19, 2021 · The air pump valve failure in your Subaru is a serious issue that needs to be fixed immediately. I am wondering if we can just put on a smaller belt and let the smog pump sit there froze up. 6 V8 Turned on the truck and the 4lo, check engine, and trac off lights were all on. I found a bypass online (not advertised to work on the 2011 4. If your Mercedes sounds like a a jet engine in the morning or a circular saw when you start the engine you probably have a problem with the Secondary Air pump - It might be a free repair or very Mar 8, 2022 · Bad Secondary Air Pump Symptoms A failing secondary air injection pump is often accompanied by a host of additional symptoms, many of which vary significantly in severity. In some areas its only required when you buy a vehicle but are not required to Mar 12, 2013 · Wouldn't make any difference if the smog was due or not. Jan 19, 2010 · Well I just got off the phone with Pete and he doesnt think that the vacuum pump can preasurize the sump. Have you considered you'd get a better answer if you posted the make, model, year and mileage of your car? AIR pumps get replaced, not rebuilt. . Listen closely for a high pitch vacuum cleaner type sound coming from under the driver side headlight. Oct 19, 2024 · A smog pump's failure is often linked to a multitude of symptoms, indicating broader system malfunctions needing prompt attention for optimal vehicle operation. Early versions were driven by a single V-belt. I replaced the manifolds, Jun 10, 2022 · I recently deleted the smog pump (was going bad) and the egr system. 0/429 EFI, truck has no cats and my county requires no emissions inspection. No trouble starting. com. Apr 29, 2022 · The secondary air injection pump is an additional electric pump integrated into your vehicle's air intake system. Feb 1, 2020 · So. 9L / 300 - Pass Emissions Without Smog Pump ('84 Carb) - I picked up an '84 F-150 with a 300 S6 last week and have some questions about getting it through emissions here in Idaho. Sep 8, 2025 · There Are Two Types Of Air Injection Systems (AIS) Pumps: The First Type Is, “The Pump Type” Air Injection System (AIS) (Smog Pump) It is responsible for, supplying fresh pressurized (o2), into the exhaust stream, as it exits the exhaust manifold. Dec 10, 2021 · You can find some components of the secondary air injection system under the hood of your vehicle, including the air pump or smog pump and the air injection check valve. Jul 27, 2020 · 1987 - 1996 F150 - Noisy smog pump - How's this rate on the noisy smog pump scale? There isn't any play in the pulley itself but if I spin the pump by hand and can feel a bit of resistance here and there. All vacuum is hooked up and/ or plugged. I guess I will try to plug the vacuum pump and see what happens. 9 Smog pump or not - I believe that the bearings in my smog pump are going I have developed a whine while the truck is idling. Jun 20, 2011 · 1987 - 1996 F150 & Larger F-Series Trucks - air injection and smog pump delete - i know you can get ride of the smog pump and run a shorter belt but what all do you have to do to get rid of it? is it just a matter of unbolting it? do you have to cap anything off? im going to try and do it when i replace my core Mar 23, 2020 · Symptoms of a bad evaporative leak detection pump A problem with your evaporative leak detection pump can be a serious issue. Jul 23, 2019 · Vehicle: 93 F150 Extra Cab with a 302. mileage went up and the truck ran smooth. This can cause all sorts of problems depending on the driving. This causes corrosive exhaust gas condensate to get Mar 7, 2019 · The secondary air injection pump (also referred to as a smog pump or SAI pump) lies after the exhaust manifold and before the catalytic converter of the vehicle and it can reduce carbon emissions by pumping fresh air from outside into the exhaust stream. It started with a P2440 code. Nov 17, 2016 · However, sometimes if this component is damaged, the smog pump or air pump will also have damage done to it as well. Google "cadillac forums secondary air system" or something Jul 24, 2019 · How do I know if my smog pump is bad? One of the first symptoms of a bad or failing smog pump is a rough running engine. ikdaa zkim ehq nkwhma nqug hnfwpk qikxz pde bpzvou nzgc