I have a 1999 GMC Suburban K2500 7.4L 4x4. I cannot get it to start. the battery is good, alternator just tested good, i no longer hear the fuel pump when switching the ignition on.
I was have problems starting consistently on the first crank prior to this post. I feel like i was having the sampe problems as this link:
http://www.fixya.com/cars/t1713727-99_suburban_7_4l_random_starting_problem
Just wondering where i should start looking at this issue. Has a throttle position switch error happen within the last two months.
I the fuses and relays are good for the pump it could be a bad pump especialy if you was having starting problems make sure you have power to the pump. Also do this before changing pump. Put your key in turn it on dont start wait 10 mins remove key wait 10 seconds repeat this a total of 3 times. If that dont work try a different key do the same thing. This relearns your key to the ignition it started with Gm cars and trucks from 1999 to to 2006. It is a big problem but there is no recall that I know of. If that dont work a dealer needs to probably replace and reprogram your ignition switch and keys
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I tried this but my battery died! it's dark now and i cannot see anything. i will try tomorrow.
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