1999 Oldsmobile Intrigue 3.5L V6Car
My car studders and stalls at times. Especially when it's just started before it warms up. Almost like it's not getting a consistent spark or maybe it's not getting a consistent fuel source. Have any ideas?
Have any ideas?
That thing is 26 years old, it could be many things. What diagnostic steps have you taken so far? Have you checked the usual suspects (filters, spark plugs, fuel pressure)? What does a diagnostic scan for codes and live data reveal?
Do you have a scan tool? If so check the fuel trims and O2 sensors. If O2 sensor 1 (upstream) isn't working correctly then the engine will have no control over the air-fuel mixture.
If you're cruising down the road at 40mph and floor it does the engine lose power and bog down? If not then it's probably not a fuel pressure issue.
