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02-23-2015, 12:03 PM
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#1 |
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Registered User
Join Date: May 2011
Location: Texas
Posts: 984
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still not running right, what's the problem here
90 burb 350 TBI changed fuel filter and now it has killed at the stop light twice, starts right back up but still a pita. Can't find my spark plug socket, so no tune up yet. It idles smooth then rough and vibrates so I've been having to keep my foot on gas and brake to keep it running, then it smooths out again. Does this sound like this may be a timing issue? Always starts and it only does this in drive while sitting. Any advice is greatly appreciated. Thanks in advance.
90 burb 350tbi probably 300,000 miles. Shifts perfect.
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Rest In Peace:Mikhail {Mickey Rooney} Alpha 2/5/13 Omega 7/22/14 10:28AM I love you tremendously and outragiously Superpuppi Thai Ridgeback...The most intelligent dog known to me. Don't mess with my truck, my momma or my money...not necessarily in that order. ©Stand for something or fall for anything. [LIST][*]'98 Bourbon St. Brawl ©2010
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02-23-2015, 12:06 PM
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#2 |
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Registered User
Join Date: May 2011
Location: Texas
Posts: 984
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Re: still not running right, what's the problem here
Checked alternator it was fine. Also, there is two batteries actually hooked up, which is odd. One needs to be charged as I was told by autozone.
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Rest In Peace:Mikhail {Mickey Rooney} Alpha 2/5/13 Omega 7/22/14 10:28AM I love you tremendously and outragiously Superpuppi Thai Ridgeback...The most intelligent dog known to me. Don't mess with my truck, my momma or my money...not necessarily in that order. ©Stand for something or fall for anything. [LIST][*]'98 Bourbon St. Brawl ©2010
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02-23-2015, 12:23 PM
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#3 |
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Registered User
Join Date: Feb 2015
Location: Terrell, Tx.
Posts: 9
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Re: still not running right, what's the problem here
Check you idle control valve on the passenger side of the throttle body! The tps will be in the center and the idle control valve will be just to the left of it! A crescent wrench will back it out easily.
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02-23-2015, 10:51 PM
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#4 |
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Registered User
Join Date: May 2011
Location: Texas
Posts: 984
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Re: still not running right, what's the problem here
What is the red flag when I take it out? I'm new to TBI will the truck run without it? Thanks!
__________________
Rest In Peace:Mikhail {Mickey Rooney} Alpha 2/5/13 Omega 7/22/14 10:28AM I love you tremendously and outragiously Superpuppi Thai Ridgeback...The most intelligent dog known to me. Don't mess with my truck, my momma or my money...not necessarily in that order. ©Stand for something or fall for anything. [LIST][*]'98 Bourbon St. Brawl ©2010
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02-23-2015, 11:08 PM
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#5 |
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Registered User
Join Date: Feb 2015
Location: Terrell, Tx.
Posts: 9
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Re: still not running right, what's the problem here
What you need to do is try and recreate the problem! When you unplug it the truck usaully runs as you have described. You can keep it running the way you have described also! No it wont run right without it, so it has to have it to operate correctly. Usually when you can recreate the problem intentionally you have found the issue!
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02-24-2015, 02:34 AM
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#6 |
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Registered User
Join Date: Nov 2009
Location: Lake Jackson,Texas
Posts: 126
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Re: still not running right, what's the problem here
I had the same problem once and it turned out to be the TB to intake gasket. Mine looked good but I guess it wasn't sealing anymore. My Deville was doing the same thing and it was the TB to intake hose that had a crack in it.
Unfortunately it could be a lot of things, it's just an educated guess and a process of elimination. The IAC is definitely a good place to look. Could be a vacuum leak. How old is the fuel pump?
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Tommy 1 Pt. 3:21 '72 C10 LWB 402 |
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02-24-2015, 11:18 AM
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#7 |
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Registered User
Join Date: May 2011
Location: Texas
Posts: 984
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Re: still not running right, what's the problem here
Thanks guys! I just bought it on the 8th of this month. Think I will call seller to try and find any info. I will try you alls suggestions. Thanks again.
__________________
Rest In Peace:Mikhail {Mickey Rooney} Alpha 2/5/13 Omega 7/22/14 10:28AM I love you tremendously and outragiously Superpuppi Thai Ridgeback...The most intelligent dog known to me. Don't mess with my truck, my momma or my money...not necessarily in that order. ©Stand for something or fall for anything. [LIST][*]'98 Bourbon St. Brawl ©2010
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02-24-2015, 11:29 AM
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#8 |
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Registered User
Join Date: Jan 2014
Location: Indpls. , IN
Posts: 795
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Re: still not running right, what's the problem here
I agree "it could be alot of things", my '90 quit running and showed to be the fuel pump -but was actually just the sock on the end of the pump. (that was at least 20 yrs ago )
With that high of mileage there will be alot to look over, find out what all has been replaced already by the previous owner.
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Tim K. 84 K30 srw Silverado 454 auto 85 C20 350 C6P auto flatbed 94 K1500 lifted shortbed 350 4 bbl NV4500 |
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