HELP My 1996 GMC Suburban 5.7 Vortec wont Start
11-30-2005, 04:55 PM
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HELP My 1996 GMC Suburban 5.7 Vortec wont Start
Well I am here stuck at work because of this POS!!!Here is the thing The thing just wont start in colder weather.50-60 degree's starts fine but today in 30 degree weather it wont start.Cranks over fine ,I have got spark,The plugs are fairly new Its like it's not even trying to fire!What do you guys think it is.Starts fine in warmer weather but 40 degrees and lower gives me ****.It has been giving me troubles this year since the colder weather,But this time it dont want to start at all.....I hope I have the right forum to post this....Please HELP!!!!
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99 Camaro SS,Old Motor 224 cam,and Boltons.Best Run 12.20 at 114.7 on a 1.877 60,Full Weight No Diet,Mustang Dynoed,330 RWHP,300 RWTQ
New Motor Powered by MTI,Kooks Exaust,RC Trans&Gear Drive Train and Yanked!best run 12.17@119.3 on a 2.03 60'Mustang Dynoed 415 RWHP & 380 RWTQ Thru a 12 Bolt Moser and Full Exaust,New Times comming soon,My Latest Mod HP Tuners and Its the most fun and useful mod yet 408 In process
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99 Camaro SS,Old Motor 224 cam,and Boltons.Best Run 12.20 at 114.7 on a 1.877 60,Full Weight No Diet,Mustang Dynoed,330 RWHP,300 RWTQ
New Motor Powered by MTI,Kooks Exaust,RC Trans&Gear Drive Train and Yanked!best run 12.17@119.3 on a 2.03 60'Mustang Dynoed 415 RWHP & 380 RWTQ Thru a 12 Bolt Moser and Full Exaust,New Times comming soon,My Latest Mod HP Tuners and Its the most fun and useful mod yet 408 In process
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11-30-2005, 07:32 PM
#2
Fuel pump would be my initial guess. I had a 97 Suburban and it would act up on me...wouldn't start, wait 20 minutes, and it was fine. Died on me a few times while driving too, wait 20 minutes and it would start right back up. New fuel pump, no more problems. Do you hear the fuel pump running when you turn the key to run but don't crank it over?
11-30-2005, 07:59 PM
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Originally Posted by thunder550
Fuel pump would be my initial guess. I had a 97 Suburban and it would act up on me...wouldn't start, wait 20 minutes, and it was fine. Died on me a few times while driving too, wait 20 minutes and it would start right back up. New fuel pump, no more problems. Do you hear the fuel pump running when you turn the key to run but don't crank it over?
11-30-2005, 09:56 PM
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you will usually only hear it run a second or two at initial key on engine off. pull the breather, have someone turn it over and see if its got fuel.
if you've got fuel, check the ignition module in the distributor. these are the two most common problems with the older chevrolet trucks.
if you've got fuel, check the ignition module in the distributor. these are the two most common problems with the older chevrolet trucks.
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