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Very hot air coming out of the tailpipe on my 95 ford explorer. you cant even put your hand infront of it without burning the hair off your hand. also has a very rough idle. could it be a pluged cat?

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  • woodin85
    woodin85 Oct 30, 2012

    I have replace the plugs, wires, pcv which helped with the hot exhaust out of the tail pipe. The egr valve, cleaned the throttle body and still a very rough and up and down idle. If i cant figure it out i will just bring it to the shop. but if you have anymore ideas let me know.

  • Ricky Peters
    Ricky Peters Oct 30, 2012

    Take the idle air control valve off and the carbon out of it and spray it down with a non-chlronated brake cleaner.If problem still exists afterwards then do the same with the mass air flow sensor spray the inside with the non-chlronated brake cleaner and let it dry for 10-15 minutes and re-install.

  • woodin85
    woodin85 Oct 30, 2012

    I went and baught a new gasket for the egr valve cause i noticed it was leaking. due to me thinking high temp gasket maker would work which obviously didnt. Now the only problem is when you first start it the rpms go down to about 500 for 6 seconds and runs a little rough. then jumps up to 1000 and stays there but runs perfect.

  • woodin85
    woodin85 Oct 30, 2012

    and i dont think it should idle that high but it runs way smoother when its at a grand vs 500 to 800.

  • Ricky Peters
    Ricky Peters Oct 30, 2012

    Check for a vacuum leak around the intake manifold and the throttle body.

  • woodin85
    woodin85 Oct 31, 2012

    ok ill check. thanks for all the help. really appreciate it.

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  • Cars & Trucks Master
  • 2,620 Answers

Tap on the bottom of the catalytic converter and if you can hear a rattle noise then the cat is defective.They will melt down on the inside and brake apart..

Posted on Oct 29, 2012

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try this website fix & troubleshoot heating & A/C www.automedia.com and another car A/C repair www.directgardening.com

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SOURCE: Cylinder 1 and 4 misfire on my 1997 Ford Explorer

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It could be one of the coils on the coil pack. Most coils nowadays do two cylinders each. This way car makers can get away with one coil for two cylinders.(lowers costs) One spark fires the air fuel mix in one of the cylinders and the other will fire the cylinder on the exhaust stroke. If the coils are removable, and you are fairly handy with cars,switch two around, the problem will follow the bad coil.

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