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Trouble idling.


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paulj1
Novice

Nov 18, 2015, 11:18 AM

Post #1 of 6 (764 views)
Trouble idling. Sign In

I have a 97 Chevy z71. Just recently it started dying out when coming to a stop or starting slow from a stop. Could this be fuel pump or electrical. Cranks just fine and doesn't do it it all the time. Please put me on the right path.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Nov 18, 2015, 11:46 AM

Post #2 of 6 (758 views)
Re: Trouble idling. Sign In

Check engine light on? If so, what trouble code(s) is stored. Write down the numbers.

If suspect fuel pressure, install a fuel pressure gauge and monitor fuel pressure when the problem occurs. That will tell you if it is a fuel delivery issue or another problem.





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paulj1
Novice

Nov 18, 2015, 11:52 AM

Post #3 of 6 (753 views)
Re: Trouble idling. Sign In

not throwing check engine light.


Hammer Time
Ultimate Carjunky / Moderator
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Nov 18, 2015, 12:05 PM

Post #4 of 6 (748 views)
Re: Trouble idling. Sign In

You may have a bad IAC ( idle air control) but try eliminating any vacuum leaks and cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



paulj1
Novice

Nov 18, 2015, 12:38 PM

Post #5 of 6 (740 views)
Re: Trouble idling. Sign In

Ok I will try that first. Is there a way to see if sensor is bad or not?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Nov 18, 2015, 1:12 PM

Post #6 of 6 (736 views)
Re: Trouble idling. Sign In

It's not a sensor, it's an actuator and you have to get everything else clean and working first.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.







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