Question about 1999 Saturn SL

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1999 Saturn SL1 trouble starting when warm

My car will start in the morning or after it has sat for several hours. If I stop for groceries it won't start up when I come out until it cools down for several hours. I've replaced the spark plugs and spark plug wires, but I'm not sure where to look next.
Thanks.

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  • sad99 Jan 07, 2009

    I have the same kind of car and all what I can tell you is that it will get worst. I do not think is the plugs or the battery and do not let anyone to tell you is the fuel pump. More likely is a problem with some relay. I am not a mechanic and my understanding of cars is not very extensive, but having the same car and yours is showing some of the first symptoms of a very common problem for Saturns, I will suggest to look into the relay box that is placed on the front pasanger's side. Try to pull the one that controls the fuel pump, in my case I had to pull the one that controlled the rear defrost to restart my car (don't ask me why, have no clue) When I said it gets worst, this problems eventually leads to problems with the transmission (again don't ask me why, it just did in my car) seems like is a computer-circuit problem. Hope this helps

  • ataylor4914 Jan 13, 2009

    my car will start great first thing in the morning it's like 10 degrees out today! But later after i drop my daughter off at school won't start. Also when I stop at a stop sign or light, when I press the gas to go, acts like it's gonna stall! Help! When it was giving me problems starting I replaced the starter, not the problem by the way.

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It was the coolant temperature sensor. It was telling the car that the coolant was always cold, therefore when starting a warm engine it was being flooded. $$$

Posted on Jan 16, 2009

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