Problem with starting our 2000 Saturn LS2: Please help! Symptoms: 1. Frequently won't start ( maybe one out of every ten times)... strong engine cranking when it doesn't start .... Accelorator pedal not depressed before or during cranking as should be the case with this fuel injected engine. Usually waiting ten or more minutes ... it will start. Have tried a few times when it wouldn't start to depress accelerator pedal to floor and hold it there while trying to start it again to try to ''unflood'' it but this has never worked. 2. When it does happen ... engine has been off for anywhere from 20-30 minutes but also many times after sitting overnight. Note: the engine was probably never really ''hot'' or overheated. There seems to be a weak correlation with non-starting and the moisture in the air, more moisture ... more chance of not starting but this is not an absolute correlation, has happened when it was quite dry ... it doesn't happen at any particular time of day. Thanks for your consideration

I had the same problem with my 2000 Saturn LS2 and after replacing the fuel filter, fuel pump, ignition module, and coils I still had the same problem, I found out it was the crank sensor the whole time, after replacing the crank sensor the car is running fine and I spent all the money on the other parts for nothing. It didn't show up when put on the diagnostic machine, I am so glad that I finally found out what it was, hope this helps.

I just posted the same problem on this site. Our issue seems to be the Passlock system. The car thinks its being stolen and therefore locks down and will not start. It resets itself after 15 minutes. That is why you are sometimes able to restart it later. Now, having said this...........when the car does start, we do see the low coolant warning light come on, which is what prompted me to read this response. I am just trying to figure out how to solve our problem without dumping another $500+ into the piece of **** that it is.

Sounds like the coolant temp sensor and pigtail need to be replaced,they are located at the drivers side end of the cylider head and is a very common problem with a hard start,there are two sensor there and i suggest replacing both of them,one is for the temp gage and the other is for the computer to know what to do with fuel delivery and injector pulse width,in short what happens is the computer thiks the engine is hot all the time and leans the fuel mixture out to where it would be when the engine is hot, a cold engine needs a rich fuel mixture to start and run so a cold engine with a lean mixture is gonna be a bear to start,if you have access to a scanner that would be great so that you can hook it up cold and see what temp the computer is seeing,it should be close to the outside temp,i would also suggest replacing the plugs and wires on it also,hope this helps