What is your question?
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What is your question?
It's a 02 and it just recently started having this issue. Most of the time it just cranks and doesn't start but sometimes it starts up with a loud choking/grinding type noise and runs for 2-3 seconds then stalls (no "bad sounds" when running). It used to only happen maybe once a week but now it doesn't really ever start at all. Fuel pump tested, pressure is good and the coil packs and spark plugs were replaced 4000km ago. It doesn't show any codes and in the odd time it starts and runs as it should, it idles rough and feels like the rpms drop too much then it surges back up constantly. I tired to push the accelerator all the way down when starting to eliminate the TPS but it still only cranked. No issues when accelerating to pass someone or just normal driving. It doesn't die when I come to a stop or floor it but once I shut it off, that's it. Usually I have to wait at least 36 hrs before it will start up and even then it mostly just cranks and cranks but never starts. Thanks.
What makes this problem better or worse?
Generally trying to restart the car after any amount of time is seems to make the chances of it starting lower, especially when its cold.
How long has your 2002 Buick Rendezvous had this problem?
about 2.5 weeks
1 Reply
For this kind of engine performance concern, consider what is needed to start a cold engine. 1) Fuel pressure must be adequate. You mentioned that you are sure fuel pressure is good. 2) Spark. Ensure spark is firing at all cylinders. 3) Air intake. The amount of air needed inside the engine varies depending on ambient temperature, as well as how "warmed up" the engine is. If the engine gets too much air, then it won't start. 4) Exhaust flow. If the exhaust is restricted, the engine won't run properly. Testing is required to find out what element is lacking.