Questions & Answers for: GMC Jimmy engine no start

this way, this would be an indication that the engine is getting too much fuel for its temperature and opening the air supply fully helps to change the air-fuel ratio sufficiently to allow it to start

has failed in the lean mode, as mine did, the vehicle won't start when the engine is cold.  Once you get it started it will continue to start as long as the engine stays warm. Hope that helps

start 3-10 times when the engine is cold, it fires once or twice but won't start. after doing this 3-10 times, (the number of times is getting worse). After it's warmed up, it starts fine for the rest

...start and run though. Is your service engine soon light on the dashboard lit up? it is where your gauges are. MAF sensor usually won't prevent an engine from starting but would cause erratic idling ...

...start the engine. I also hear it running while I attemp to start the engine. The engine won't start until I put a little gas onto the butterfly in the intake. It may take several attempts before the ...

...fuel pressure gage. It needs that pressure to start, after it starts, it will run with less pressure. There could be other issues? Engine cranking, you have spark at the plugs and fuel injector

...engine. When it's cold it sometimes doesn't want to start and seems to be flooding, when you let it sit for an hour or so it will start right up. Once you get it started it will be fine all day until ...

...problem, it will start and run. (It won't run very good, but it should idle OK) If you have a 4.3L engine, I have seen Cam Sensors cause a start and stall condition. (part of the distributor

...they're in a similar place, but these just glow very hot. If, the glow plugs haven't been changed for 5 years or more, then they might start to fail, one reason why a diesel engine won't

...start problems.but make sure engine has good spark plugs and wires.clean fuel injectors and new fuel filter.during cold start up or morning start up engine need rich fuel mixture good spark to