does this sound like bad injector pump

[rob1681]

I have a 1988 suburban 6.2L just put this motor in about two weeks ago and today i got in it and when i press the gas just a little the motor races away and when i get off of it it dies,but you can hit the key and it starts great.Has any one have this problem or know whats wromg?

[john8662]

Check for air/fuel leaks on any of the fuel lines to and from the pump and on the fuel filter, etc. To me it sounds like a linkage problem, or possibly a wacky cruise control engaging! Check for binding of the linkage, and where the spring is on the throttle shaft. Usually a pump won't run away like that unless the pump top has been off and wasn't quite put back on correctly.

[rob1681]

today i checked for leaks and could noy find any,i also changed fuel filter. come to think about it the problem started after i tighten a injector line at the pump that was leaking.there is nothing hanging up on th linkages,but if you depress the pedal only a Quarter on an inch it revs up and die. can someone please help????

[Turbo Al]

I would check the fuel line to the engine itself, make sure it was not crushed or pinched when the motor was put in. I don't think you have a fuel pump but if you do check it.

[rob1681]

thanks turbo al I"ll check that and get back with you

[rob1681]

Well changed the injector pump problem solve,took it to a shop to get it check and they told me that the governor was bad