new fuel pump, lower psi
#1
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my 96 tahoe has a performance issue at 3000 to ? rpm. fuel pressure is at 50 psi while idleing and 60 undr a load. i rebuilt the motor do to a spun rod bearing, new regulator, tps, and i replaced the fule pump w/ a acdelco pump and the truck would not start! i checked psi and it only had 45psi. so naturaly i assumed it was bad, so i purchased another one, same problem! i put in the original one and the truck runs.
??? i checked the acdelco parts list and w/ my vin, its the right part. any one else have this problem? i heard about bad pumps made in mexico, any1 have a clue? thanks. note:i had this issue before rebuilding the motor.
now that ive dissconnected the cats, it decide to stop running completly and all elect. turns out fine, replaced spider, still wont start. i am also still looking for a chevy pos guru,
![Confused](https://chevroletforum.com/forum/images/smilies/confused.gif)
now that ive dissconnected the cats, it decide to stop running completly and all elect. turns out fine, replaced spider, still wont start. i am also still looking for a chevy pos guru,
Last edited by stites31685; March 8th, 2010 at 3:36 PM.
#2
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i found the problem w/ everything above finally! I replaced the pump, but not the basket, what a jack ***, thats what i get for short changeing it. Well, next time maybe u guys will have an insight on my next problem.
#3
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Happy to hear you solved your problem...whats the "basket"? My 00 Hoe Limited is acting stupid and I have been chasing a hard start problem that I believe is the fuel pump check valve going bad.
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