2002 Buick Regal

DTALAJKOWSKI

MEMBER
2002 BUICK REGAL
6 CYL
FWD
AUTOMATIC
107,000 MILES

Wires and plugs have been changed. So have the oxygen sensor and converter. Cars chugs bad at idle. Parts place thinks it's the coils (car is running lean). We replaced the coils and that did not help. Awhile ago I was told there was a leak in the intake manfold. It was 250.00 to fix could not afford that I lost my job in January. Dad is trying to fix.

Monday, March 16th, 2009 AT 2:46 PM

1 Reply

JACOBANDNICKOLAS

MECHANIC
110,176 POSTS

If it is running lean, that means the engine is getting too much air and not enough fuel. There is a good chance it is caused by a leaking intake. There are ways to test for leaks but they can be dangerous. Some mechanics will start the engine and with it running, spray starting fluid or carb cleaner around the area that may be leaking. If there is a leak, the RPM's will go up. However, (AND KEEP IN MIND) if you hit a place on the engine that is hot enough like an exhaust manifold, it could catch fire. I've seen it happen. Make sure to have a fire extinguisher near by if you want to try it.

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Sunday, May 3rd, 2009 AT 6:06 PM