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Old 05-12-2013, 12:05 AM   #26
dallred
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Join Date: May 2013
Location: tremonton Utah
Posts: 28
Re: 89 tbi idle issues

Check this thread. They suggest fuel pressure.
http://67-72chevytrucks.com/vboard/s...d.php?t=399892
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Old 05-28-2013, 03:52 PM   #27
dallred
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Join Date: May 2013
Location: tremonton Utah
Posts: 28
Re: 89 tbi idle issues

I think I have the Blazer running better. When I sprayed Carb cleaner around the shaft that goes through the TB with the butterfly valves on it and it started running better. Yesterday I pulled the TB off and took it all apart, then put o rings on the shaft. It seems to be running way better already. It seems I had a vacuum leak around that shaft causing terrible idle issues.....
We will see how it goes.
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Old 05-28-2013, 07:42 PM   #28
brokenframe
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Join Date: May 2013
Location: Florence, SC
Posts: 15
Re: 89 tbi idle issues

i'm having a lot of the similar issues. but my sometimes acts like a vapor/hydro lock situation when I try to restart it after stalling. I've changed the iac, map, and cts. help!!!. go to my thread please and comment. its my daily driver and its not driving daily right now. didn't mean to steel your thread dallred.
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Old 05-28-2013, 11:49 PM   #29
dallred
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Join Date: May 2013
Location: tremonton Utah
Posts: 28
Re: 89 tbi idle issues

http://67-72chevytrucks.com/vboard/s...d.php?t=582169
check this out guys this guy might need some help
pass that on.
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