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Old February 4th, 2011, 10:50 AM   #1
chevy454
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Default 1993 chevy tbi help

I have a chevy c1500 with a tbi 350 I put new plugs and wires on and the truck run great. Now when I stop it wants to die out on take off. Today when I got to school and parked it now it will not start back up?? any ideas?
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Old February 4th, 2011, 11:07 AM   #2
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I have a chevy c1500 with a tbi 350 I put new plugs and wires on and the truck run great. Now when I stop it wants to die out on take off. Today when I got to school and parked it now it will not start back up?? any ideas?
my first reccomendation would be pay more attention in english.

you need to give more information on the problem. it could be the throttle body, several different sensors, exhaust etc.
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Old February 4th, 2011, 11:31 AM   #3
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Sorry typed to fast on my phone I know the truck is getting spark and fuel. The ses light come on this morning. Thinking maybe The iac but idk
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Old February 4th, 2011, 11:41 AM   #4
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Just bring it in somewhere and have them pull the codes. If it won't start, the SES light will be on anytime the key is on and it's not running.
My 1st guess would be a plugged fule filter. It will act like that and chances the water seperator in the filter is full and finally froze solid.
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Old February 4th, 2011, 03:44 PM   #5
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I just got the codes and it was the fuel pump relay. So I put a new one on, it starts but still when I'm at idle, then go to take off it wants to die out.
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Old February 5th, 2011, 12:38 PM   #6
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The coolant temp sensor was a code also. Can that be my problem?? Someone told me that it can.
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Old February 6th, 2011, 12:26 AM   #7
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The coolant temp sensor was a code also. Can that be my problem?? Someone told me that it can.
Oh with out a doubt that will make it run like shit...there are two coolant temp sensors, there is one in the drivers side head, that one is for your gauge and has no effect on how your truck runs. The other is right by the thermostat housing and it sends a signal to the computer and if it is bad it will make your truck run like crap...change it they are cheap and it is a simple fix, should not take you anymore than 10 minutes!

PS: When buying the new sensor make sure the friggin idiot working the parts counter knows exactly what sensor it is so you dont get all the way home and find out he gave you the one that goes in the head...been there done that
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Old February 6th, 2011, 03:01 AM   #8
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Without more info...it's probably something in your fuel system...plugged fuel pump/filter, I doubt it'd be the IAC or the TPS because that wouldn't cause it to die out on takeoff (at least in my expierence). Start by doing some tests such as fuel pressure and go from there.

You can test your IAC, just unscrew it from the back of the tb, plug it in, turn the key on and the little center think should move out (or in...one of the two)
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Old February 6th, 2011, 03:02 AM   #9
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Without more info...it's probably something in your fuel system...plugged fuel pump/filter, I doubt it'd be the IAC or the TPS because that wouldn't cause it to die out on takeoff (at least in my expierence). Start by doing some tests such as fuel pressure and go from there.

You can test your IAC, just unscrew it from the back of the tb, plug it in, turn the key on and the little center think should move out (or in...one of the two)
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Old February 6th, 2011, 01:25 PM   #10
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It was the coolant temp sensor that was bad. Hopefully this fixed it! Only took me 5 to 10 min to replace it. Thanks

Last edited by chevy454; February 6th, 2011 at 04:10 PM.
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Old February 6th, 2011, 06:11 PM   #11
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It was the coolant temp sensor that was bad. Hopefully this fixed it! Only took me 5 to 10 min to replace it. Thanks
Told ya so
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Old February 6th, 2011, 07:08 PM   #12
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Ya thanks the truck runs way better then it was
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