1993 Chevy Lumina 6 cyl Front Wheel Drive Automatic 125000 miles
I have a 93 lumina with the 3.1L engine and about 125k miles.
I have had trouble starting the car, especially in the morning after sitting all night. It always cranks, but sometimes it cranks and loud noises like it is backfiring comes from the engine side. When it begins to catch and start running, it backfires or pops from the engine, stutters and lags.
When I finally get it running a little, I have to mash the gas and it stutters, pops and is real sluggish, then takes off.
What I have done so far is replace all the spark plugs, replaced the IAC and the TPS. In the process of replacing the TPS and the IAC, I cleaned the throttle body of all the carbon in it.
Any ideas on what is goin on here?
have the same problem?
Thursday, August 7th, 2008 AT 7:11 PM