Transmission or engine driveability concerns (related to the MAF sensor being contaminated with oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not considered to be warrantable repair items. If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and the air induction hose for contamination of oil prior to making warranty repairs. The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty. The MAF, GPS reading should be compared to a like vehicle with an OEM air box and filter under the same driving conditions to verify the concern. When servicing a vehicle with any of these concerns, be sure to check for the presence of an aftermarket reusable, excessively/over-oiled air filter. As a result, the Grams per Second (GPS) signal from the MAF may be low and any or all of the concerns listed above may occur. The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF) sensor causing contamination of the sensor. Transmission shift concerns, slipping and damaged clutch(es) or band(s)Įngine driveability concerns, poor acceleration from a stop, limited engine RPM range The use of an excessively/over-oiled aftermarket, reusable air filter may result in: Please discard Corporate Bulletin Number 04-07-30-013A (Section 07 - Transmission/Transaxle). This bulletin is being revised to add models and model years. Here is the TSB and pay close attention to it if you run a CAI, I don't but my air filter was freaking filthy.Īutomatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon (SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air FilterĢ007 and Prior GM Cars and Light Duty Trucks We will see over the next week if this truly fixed the problem or not. However like I said this morning it didn't do the dropping to 300rpm and almost stalling when I decelerated. I did notice thought now I have was sounds like either a belt starting to go bad, maybe a vacuum leak (higher pitch kinda soft whinning sound). It seems to be running ok now so I will have to wait and see how well it all holds up. Now, It worked great on the MAF and there was several dirt particles and alot of dust is cleaned out of the MAF so I'm thinking this could have been the problem (SEE THE TSB BELOW), however it ran like s**t for about 5 minutes after I got everything put back together and started it up. At the recommendation of several people I used this same product to clean the plastic intake shroud (Before the Throttle body), the Rubber pipe connecting the shroud and the valve cover, and (I'm sorry, I was tired, but this was still stupid even though they said to do it) the throttle body. B IS posted below.īasically I used CRC MAF cleaner and cleaned my MAF. SO yesterday I subscribed to a TSB site so I could get all the TSB's on the cars as I found a couple that from the titles sounded about right. I may have broken something else though, we will see how it goes for the next few days. It didn't happen on the way to work this morning and it usually does, we will see how it goes for the next week or so. I just bought this car alittle over a month ago and rely on it so I need to figure this out and get it fixed. If I decelerate slowly, or have been driving at even driving conditions (not alot of accelerating then decelerating) this doesn't really happen. No check engine lights come on at all (I wish they did, I have a nice scantool). ![]() When the Idle is rought the lights dim on the car, power steering becomes weak, and other problems you would expect when your idle drops and your car is about to stall. This morning it actually stalled when I was pulling up to a stop sign to pull out of my subdivision. When decelerating on the freeway to come to a virtual stop for traffic, when stopping at a stop light, when pulling out of the driveway, or at any point when the RPM's fall quickly to idle speed I have an irratic idle. UPDATED SEE LAST POST 06 Cobalt Rough Idle/Stall when Stopping or Quick Deceleration
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