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Hates starting when hot.

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by DUKE, Mar 16, 2002.

  1. DUKE

    DUKE 1/2 ton status

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    Ok im not sure what or why but if you do please share. When ever i turn off the engine for just s few min, say to get gas, she is a pain to start turns over really slow. Somtimes refusses to start at all, some times only after a try or two. When i let her cool down she starts right up. Pretty much in the dark here.
     
  2. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    try adjusting the timeing
     
  3. Stomp

    Stomp 1/2 ton status

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    yep sounds like a timing issue
     
  4. BLUESMAN

    BLUESMAN 1/2 ton status

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    Does your truck have headers?The stock Gm starter solenoid is prone to not operating when it gets hot.There are a couple fixes...1) installa remote solenoid, 2) insulate the solenoid from the exuast, or 3) easy fix...pour some cold water over the solenoid everytime you want to go somewhere!LOL!!!
     
  5. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    yes both issues would cause this a over heated starter or timeing
     
  6. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    My timing is spot on, I run a remote mounted solenoid, and all new oversized wires. I even have a separate 'starter' button so I can spin the motor and then turn the key on to start it. My truck will still not start when hot.../forums/images/icons/mad.gif Yes I have headers.
    I think the starter itself is just geting old and weak though. I'm going to try one of the new gear reduction starters Chevy used in the newer trucks and see how it does then.

    Rene
     
  7. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    i would like to try one of those as well /forums/images/icons/smile.gif
     
  8. DUKE

    DUKE 1/2 ton status

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    How about a heatsheild of some sort?? Think that could work
     
  9. BlazerGuy

    BlazerGuy 3/4 ton status

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    Could it be vapor-lock?? My truck was doing the same thing right after I installed my new exhaust system. Turns out the passenger side cat was too close to the fuel lines. So I fabbed up a heat shield that goes around the cat and one for the frame.
     
  10. reddog64

    reddog64 1/2 ton status

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    Get yourself a starter shield form summit for 20 bucks... I had the same thing... now have the remote start and heat shield... not one problem... now that it's shimmed right too that helped... takes alot to turn a 468 c.i monster...
     
  11. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    I'll prolly put a shield on a new starter. This one is as old as dirt and has been apart at least four times in the last 2 years. It grinds at least 1 out of every 10 starts.../forums/images/icons/crazy.gif

    Rene
     
  12. reddog64

    reddog64 1/2 ton status

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    I went through four new starters till i gotta good one and shimmed it right on the 454...
    Thank God for lifetiem warranty /forums/images/icons/smile.gif

    I'll see if I can find a starter for you rene... I may have another good one...
     
  13. ramjet gmc

    ramjet gmc CK5 Staff Staff Member Moderator GMOTM Winner

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    I have had problems with this and look at your grounding wire is it on a good steel connection like the block on the bell housing is not good for example but all the above advice is all very good
     
  14. 79Beast

    79Beast 1/2 ton status

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    Assuming your wiring is all good (there is more to good connections than just heavy guage wire) it sounds like a starter issue. It's called heat soak. I had my starter reworked at a local shop. They beefed it a little. I'm running a factory style soleniod with heatshield. I also have 1/0 positive AND ground wires hooked to a 950 amp battery. Remember that electricity flows from negative to positive. The gear reduction starter should solve any problems as long as recieves ample current.
     
  15. denver75k5

    denver75k5 1/2 ton status

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    If you run a edelbrock carb, thats your prob. Mine always did that, they dont like heat at all.
     
  16. DUKE

    DUKE 1/2 ton status

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    OK, I bought this heat sheild at napcheckerzone supposed to fit, didnt but managed to work it anyway. First results seem to improve, but i will have to drive it for a good long time to make sure. Seems to start better over all after being cleaned up and tightend up, Thanks for all the advice.
     

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