Loss of power under load
iwin12
11-26-2003, 10:52 AM
Please reply even if different model year. I have SSE with 3800 non- supercharge engine.
Problem: Check engine light comes on after sitting overnight. Goes off and stays off after restarting. Acts like trans is slipping or too much/too little gas (looses power after 3200 RPM). If I back-off and accelerate moderately (under 3000 RPM) you would never know there was a problem.
Note: Problem gradually goes away and car drives normally for most of the rest of the day. Occasionally will be driving normally and "BAM" it's like you hit a switch and acts-up with loss of power just as decribed above.
Problem: Check engine light comes on after sitting overnight. Goes off and stays off after restarting. Acts like trans is slipping or too much/too little gas (looses power after 3200 RPM). If I back-off and accelerate moderately (under 3000 RPM) you would never know there was a problem.
Note: Problem gradually goes away and car drives normally for most of the rest of the day. Occasionally will be driving normally and "BAM" it's like you hit a switch and acts-up with loss of power just as decribed above.
iwin12
12-07-2003, 08:21 AM
This turned out to be a diagnostic code 42 problem. had to replace the ECM (computer) and the ignition module.
markwb
12-07-2003, 12:23 PM
Did that clear up the symptoms?
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