Engine Performance problem
2005 Buick Terraza 6 cyl Front Wheel Drive Automatic 106K miles
The van when starting it up doesn't start without giving it gas. Without giving it gas while trying to start, the engine turns over, starts, then cuts right off.
But when starting and giving the engine gas, the van starts right up, but has a rough RPM idle for a bit. After let'n it run for some time, the van has no problem. This issue has existed for I'd say a little over 6-months.
In looking up the possible parts that might be causing this issue, this van doesn't have a Fuel Pressure Regulator listed.
2-Car Pro's help once again. What are the top possible issues that cause this.
Again thank you. I will walk down the list to find the possible cause of this issue. Will def let you know what I come up with
October, 19, 2010 AT 11:58 AM
Ok, how do you test the current Mass Air Flow sensor? What are the steps and do you also have them in PDF format?
Again thanks much KEN.
October, 19, 2010 AT 4:08 PM
I will send the file to you. Hope they are helpful.
October, 24, 2010 AT 11:33 PM
Thank you again and I have downloaded the helpful information and preformed the checks. But what I would like to add was I pulled the MAF Sensor and cleaned it with some Gummount Carb Cleaner as if I were spraying the jet in a carb (Like 1/2 a can). The problem has gone away. The car cold starts, maintains a consistent idle, and even seems to run better.
OHIO28. Browns did the Saints bad today.
October, 25, 2010 AT 7:36 AM
Glad to know you have fixed the problem.
Yes, a dirty MAF can cause inaccurate signals resultng in starting and running problems.