0
Why would a 1990 Chevy pickup with a 5.7ltr barely idle at start up and blow black gunk out of the tailpipes?
Updated: 8/16/2019
Wiki User
∙ 14y agoBest Answer
It may need a new throttle positioning sensor, or the temp control plug it is located on the intake manifold towards the front, also may be timing, the gunk may be oil so your valve seals in the heads might be bad, good luck.
Wiki User
∙ 14y agoThis answer is:
Add your answer:
Earn +20 ptsQ: Why would a 1990 Chevy pickup with a 5.7ltr barely idle at start up and blow black gunk out of the tailpipes?
Write your answer...
Submit
Still have questions?
Related questions
Will 2003 Chevy pickup doors fit on a 1993 Chevy pickup?
no
Will a steering wheel from a 1996 Chevy pickup fit on a 1970 Chevy pickup?
NO it will not.
What does it mean when one of my lifters is barely moving in my 1977 Chevy pickup 350?
It means the lobe is worn off of the CAM SHAFT. Need to replace cam and lifters.
Why after replacing 1984 Chevy 350 heads popping out of the tailpipes?
Valves adjusted to tight. Firing order mixed up.
Will the hood and front fenders from a 1989 Chevy pickup fit a 1999 Chevy pickup?
No.
96 Chevy pickup and a 98 Chevy pickup do they have the same radiator supprt?
Yes they do.
What is the wheelbase for a 1953 Chevy pickup?
what is the wheelbase of a 1953 chevy pickup width and length?
Will a plow from a 1980's Chevy pickup fit my 1990's Chevy pickup?
It will have to be of a 88-95 Chevy i believe.
Will a side window of a 2002 Chevy pickup fit a 2005 Chevy pickup?
YES there the same.
Will a transmission from a 1994 Chevy pickup truck fit in a 1993 Chevy pickup truck?
Yes it will
Why after replacing heads on 84 Chevy 350 theres popping out the tailpipes?
either your timing is off or your valves still need adjustment
Where do you put coolant in 1994 Chevy s10 pickup?
where do i put coolant in for 1994 Chevy s10 pickup
Copyright ©2024 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.