5.0 and 5.7 Discussion, 1993 Fleetwood idle issues Wont stay running L05 engine in Cadillac Engine Discussion; Hey everyone, I have a '93 Fleetwood with the stock L05 motor in it. Recently when i start the car ...
- 09-15-11 05:51 PM #1Cadillac Owners Member
- Automobile(s): Fleetwood
- Join Date
- Jun 2009
1993 Fleetwood idle issues Wont stay running L05 engine
I have a '93 Fleetwood with the stock L05 motor in it. Recently when i start the car it has trouble starting and takes a few pumps to get it fired. Once its running the idle is very very low. Low enough that 9/10 times it just shuts off. If i give it a little bit of pressure on the gas pedal it seems to run fine but once i take my foot off, it just bogs down and shuts off. Also, it seems to be a bit down on power... but that could be psycological seeing as these things arent exactly speed demons!
I just replaced the plugs with AC Delco DP's and the oil with Mobil 1 High Mileage (car has like 150k) and oil/air filters. Car ran great for a couple weeks.
From what I understand, the TBI has self adjusting idle and upon inspection the idle screw cannot be adjusted?
Could it be running on 7 cylinders? it seems to run a little rich by the smell of the exhaust but no misfiring or knocking. How do I check if one cylinder isnt running?
Please please please help me!