1989 GMC S15 FUEL TROUBLE

  • Tiny
  • Matthew Nelson
  • 1989 GMC S15

Computer problem
1989 GMC S15 6 cyl Four Wheel Drive Automatic 100000 miles

my truck is flooding and I have to floor it to start it. Could you please help me?

Saturday, March 29th, 2008 AT 5:17 PM

2 Answers

  • Tiny
  • rasmataz
  • Member

Check the fuel pressure regulator could be leaking and injector/s stuck open

Was this
answer
helpful?
Yes
No
Saturday, March 29th, 2008 AT 5:41 PM
  • Tiny
  • kurtee
  • Member

I had the same thing happen to my 89 Jimmy 4X4.
It was the temperature sensor on the intake manifold.
When I plugged my homemade computer interface in the temp reading was showing -20 degrees and the fuel was pouring in.
I then disconnected the sensor and the car started running better.
Looking at the temp reading by the computer it showed -40.
Ha, open circuit meant that the computer put in a general fuel mix and that made it run better.
So I went to the auto parts store, got a new temp sensor and my problem went away!

Hope this helped!

Kurt.

Was this
answer
helpful?
Yes
No
Sunday, November 16th, 2008 AT 10:40 AM

Please login or register to post a reply.

Similar Questions