![]() First, let's tell you exactly what the problem is. GM issued a service kit for this connector, and if the vehicle is still under warranty, the replacement would be covered.I hope I got to you before you tried to fix the Chevy Cobalt clicking noise coming from behind the glove box. If there are signs of electrical arcing, corrosion or discoloration, replace the connector. Are there any recalls on this problem? If not, what else can we do?Ī: Carefully inspect the socket and connector for this bulb. Another month later, the bulb went out again. He had the bulb replaced but a month later the bulb went out again. ![]() Q: Several months ago, the right low beam on my son's 2009 Chevy Malibu went out. Ford has issued a new alternator/generator pulley kit to address this issue.Īs I first read your question, your description of the rattle reminded me of the typical sound caused by a cracked heat shield mount on a catalytic converter. According to my ALLDATA database, this bulletin covers a rattle or drone between 1,300 and 1,400 rpm generated by a resonance in the serpentine accessory drive belt. Help!Ī: Ask the dealer to check Ford service bulletin 11-10-26 dated October of 2011. Our dilemma is that the three-year warranty is up in March and we need a solution to this ongoing and extremely frustrating problem. The mechanics seem to be at a loss as to what is causing this to continue to occur. Today, the third tensioner replacement was put on our vehicle. The dealership finally replaced the serpentine belt tensioner and the rattle ceased for several months. The rattle can be heard over the radio and lasts 10 to 20 seconds and then it stops. The rattle is heard underneath the vehicle but doesn't occur all the time. Four months later a rattle developed when traveling at 1,500 rpm. We purchased our 2010 Ford Escape XLT/AWD 4-cylinder new in March 2010. Q: I am banking on you solving this problem. Over the next few driving cycles, the electronic control module (ECM) may relearn the correct idle speed. Since virtually all electronic fuel injection systems have an idle "self-lean" capability, you might try disconnecting the battery for 60 seconds. I'm hoping none of these were damaged during the cleaning. The throttle body on this engine incorporates two throttle position sensors (TPS) and an electronic throttle actuator motor. GM does not recommend using strong solvents because of potential damage to electrical components, sensors, seals and O-rings. GM suggests cleaning the throttle body and throttle plate with a clean shop towel and its Top Engine Cleaner or equivalent. Are you sure any and all vacuum lines that you may have removed, disconnected or disturbed during your service were properly reconnected? Did you install a new gasket between the throttle body and intake manifold when you reinstalled the throttle body? An air or vacuum leak would allow unmetered air to enter the induction system downstream of the mass airflow sensor, causing a lean air-fuel mixture that creates a high idle speed. I have been told I will need to take it to the dealer to have the computer "re-flashed." Is that true?Ī: I suspect the high idle speed after removing and cleaning the throttle body is due to a vacuum leak. I tried this and it worked for a while, but as soon as I hit the gas pedal it's back up to 1,500 rpm. Someone suggested that I drive it in first gear and "force" the rpm down to 800 or so. It now idles at 1,500 rpm rather than 800, which is normal. All went well with the cleaning, except after I was done (I removed the throttle body and moved the "butterfly" to clean it more thoroughly), the vehicle fell into a high idle syndrome of some sort. Recently it was idling rough and I read that cleaning the throttle body might solve the problem. It has 186,000 miles and is a very good commuting vehicle. Q: I have a 2006 Chevy Cobalt LS, 2.2-liter engine with a manual transmission.
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