1990 Chevy Cheyenne Dies out when you gas it

Tiny
MX12BRAD
  • MEMBER
  • 1990 CHEVROLET CHEYENNE
I have a 1990 1/2 ton Chevy p/u 305 engine. It is a throttle body injected truck. I took it to a mechanic to get it threw emissions, it passed. Now on the way home it started to bog out on the freeway but did not shut off. But now it won't run. It only starts for a second, then when you hit the gas it dies. I checked top dead center on 1 piston. Please give me some in-sight!

I have put a fuel pump in the gas tank a year ago.

I have replaced the fuel filter.

spark plugs gap is correct.035

I put a cap & rotor.

I put on a throttle body sensor.
Saturday, December 6th, 2008 AT 3:57 PM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Hi:
It sounds like you may be having fuel pump trouble again. First, have the fuel pump pressure checked.

Let me know what you find.

Joe
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Friday, December 26th, 2008 AT 7:40 PM
Tiny
MX12BRAD
  • MEMBER
  • 5 POSTS
Joe, Thanks for all your knowledge. I will check it out.
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Monday, December 29th, 2008 AT 2:54 PM

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