Question about 1996 Saturn SL

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I have a 1996 Saturn Sl2. It ran out of gas one day and sat on the side of the road for a few days. Well, I finally got it towed home, and changed the fuel filter. The fuel pump is good. But, it is smoking REALLY BAD now and its grey smoke and smells like gas!!! I've changed the starter, fuel filter, battery, and clutch. ( It's a 5 speed ) I pulled the spark plugs out and they are soaked with gasoline. NOW, idk what to do. Will somebody PLEASE help me. Thank you very much for your time. :)

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  • James Booth
    James Booth May 20, 2011

    Where could i find this engine temp. sender on my car? Cause i just checked with autozone, and it says my vehicle is not equipped with one. Can you send me a link of one or something? Also, my check engine light IS NOT ON? It was on, but i cleaned the EGR valve, and it went off.

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Here are your possible problems. 1)Leaking injectors(Rare), Leaking Fuel Pressure Regulator(Common) Bad Engine Temp Sensor. (Common), Here is what i would check. Find the Regulator and pull off vacuum line, (located on fuel rail near injectors) check if there is fuel present in line. If yes replace regulator. Check temp sender with a scanner your looking for a reading in the (-) or below 140deg F, when car is first started and smoke present if yes replace engine temp sender for computer(not sender for guage!) IF both those pass inspection replace injectors(Not common problem)

Posted on May 20, 2011

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  • MechxD
    MechxD May 20, 2011

    Top drivers side of engine, yellow and black wires, this sender is used for both computer and guage. Most cars have two, yours has just one. A malfunctioning temp sender or pressure regulator may not set a code. O2 sensor will pick up the overload of fuel eventually but basically tell you what you already know, its super rich.

  • James Booth
    James Booth May 20, 2011

    Well i forgot to say, i replaced that too. And i just came inside from checking my regulator, and the vacuum line has no fuel in it. And iv already checked my injectors, NO leaks. Gosh, IDK. lol.

  • MechxD
    MechxD May 20, 2011

    Have you checked intake air temp sensor and MAP senosr or replaced already?
    How does the car run after awhile of running, does the smoke clear up or does it stay heavy?

  • James Booth
    James Booth May 20, 2011

    I've checked both. And it smokes worse as i drive and does not clear up. While in neutral, i can floor it and the RPM's do fine. But when in gear, It takes FOREVER for me just to get to 60. Ive also checked the timing. It's on time. It boggs down BAD while going up a hill, but gets a LITTLE bit better while going down hill.

  • James Booth
    James Booth May 20, 2011

    Hello?

  • MechxD
    MechxD May 20, 2011

    Sorry about the delay, work is crazy. OK what about weak ignition have you checked/replaced ignition componets, like primary/secondary. It really seems like you have covered alot with your testing, hang in there we will figure this out.

  • James Booth
    James Booth May 21, 2011

    Ha ha it's okay i just got off work too. Ummm ignition coil packs? What do you mean? Please explain lol.

  • James Booth
    James Booth May 21, 2011

    Also, how can i test my ignition with around the house tools?

  • James Booth
    James Booth May 21, 2011

    Okay, i just got done pulling my spark plugs and wires out so i could test my spark. Only two plugs are firing right. And those two plugs are on the same coil pack. The other two are only firing sometimes!!!! Could this be my coil pack? And is that the reason why its smoking and bogging down REALLY BAD?

  • MechxD
    MechxD May 22, 2011

    Ya sounds like you got a weak coil, get a coil pack and retest. Obviously the spark will not fire the same or exactly the same time for each cylinder, hence thats why there is a firing order. Weak coils will cause bogging, hesitation, misfires, wet or fouled plugs. ITs like when you had a bad distributor cap on old school cars/trucks. Also make sure you are using factory OEM spark plugs with the correct heat range. Stay away from "BOSCH" plugs, I have had nothing but problems running those in domestic(GM/Saturn) vehicles.

  • James Booth
    James Booth May 22, 2011

    Thank you VERY VERY MUCH!! I cleaned the coil, and its firing now. BUT, only two of the plugs are firing bright. I put the other two spark plugs where the "bad coil was" and they fired good. So now i think its just the spark plugs haha. AND THEY ARE BOSCH!!!! Will that cause the car to smoke? If two good plugs are firing better than the other two bad ones?

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