Question about 1999 GMC Yukon

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1999 Yukon Start Issue

I have replaced the octopuse, battery, fuel filter, fuel pump, still having problems starting in cold weather, sometimes after a heavy rain.

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  • kfq0306 Jan 06, 2009

    Thank you for the information I have forwarded on to my mechanic....I will leave feedback later to let you know if this worked for me as well. Thank you!

  • fiademia Jan 19, 2009

    My vehicle won't start but its warm out. Wondering if its the same deal, after the cold, then the rain. We've added heet in the fuel tank, having it towed to the garage today.

  • kfq0306 Sep 07, 2009

    When replacing the oxygen sensors did you replace the upstream or downstream sensors...or all? Thanks



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We had the same problem until i replaced the oxygen sensors and water proofed the connections

Posted on Dec 28, 2008

Testimonial: "Seems helpful -- I am wondering if you had to replace all four sensors or only upstream / downstream? Thank you"


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I am thinking that there may be a fuel bleed down problem if this is an injected engine.

Try this, turn on the key, but do not try to start the engine for 30 seconds. Then see if the engine will start on the first try.

As for wearing the battery down, cold is hard on a battery, so having an engine that starts easy is easier on the battery.

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My 1993 Honda prelude has problems starting in the cold weather. We have replaced the relay like suggested by their mechanic but still no luck. We have had to jumper the wires and that is the only reason...

Try to start with a less expensive procedure. In addition to relay I would check the spark plugs, wiring set and distributor cap. Also coolant temperature sensor can be a problem. Try to warm up the endine block of car with dry heat (hair fan or heat gun, but gently). Sometimes it helps. If it works problem is spurk plugs, distributor cap or coolant sensor. Also would be usefull to chek the fuel filter.
But first for cold weather sometimes it worthy to use the injector cleaner/or octane buster and better fuel which evaporates better and less viscouse motor oil. And of course check the battery.
Good Luck

Dec 09, 2008 | 1993 Honda Prelude

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