Question about 1989 GMC S-15 Jimmy

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89 s15 jimmy starting troubles

I have an 89 s15 gmc jimmy 4.3l v6 2 barrel tbi with starting troubles it floods real easy and seems to be getting to much fuel at startup,so much so ive seen puddling ont the throttle plates both injector spray a heavy fuel stream if the gas peddle is not to the floor(not a fine mist like ive seen on most fi but im new to this viechle so im not sure if thats normal) when it does start it runs fine and will stay running any help is appreciated thx

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Hello? Get some helpful tips here. Manuals Schematics Comphotechtronics

Posted on Jun 24, 2017

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Posted on Jan 02, 2017

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terseo
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SOURCE: 1994 Yukon running rich and flooding

Fuel pump circuit (low voltage)
Try replacing the fuel pump relay or testing it if you have the manual.

Posted on Sep 20, 2009

wireguy212
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SOURCE: fuel mileage and injector problem

You should probably get the catalitc conveter checked.If you are'nt getting rid of exhaust then you are wasting fuel by blowing it out the tailpipe.

Posted on Oct 23, 2009

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SOURCE: i have tbi 2.8l v6 will a computer from a 1994 350 tbi

not compatible

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SOURCE: 89 GMC K2500 5.7L TBI not spraying fuel

have you checked the coolant temp sensor? it controls air-fuel mixture.

Posted on Feb 04, 2010

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1 Answer

How do you put a gmc jimmy s15 2.5 1987 troddle body in after it's took out i need to know were the o rings go and the filters


Looking down at the tbi there are 2 screws holding the injectors in place, remove them then remove injector ,a oring goes around each injector

Dec 02, 2014 | GMC Cars & Trucks

1 Answer

I have a 1992 gmc jimmy s15....it will turn over and getting fuel and getting fire but will not crank. whats the problem? I have replaced the fuel pump, fuel relay, injectors,pressure regulator, dist.cap....


did you replace spark wire 1 by one,? if not bingo, you layed them down wrong.... (did car just die, by self or after a tune up?)
4.3L V6?

please stop throwing parts, you rich>? (60k tune up excepted always)
the EFI engines will not put out fuel if spark is dead.
what does getting fuel mean?
1: injectors squirt?
2: the cracked open rail plug dribbles?
what?
3;spark plug tips wet,
4: black smoke out tail. what/?
it's a no start, cranks perfect car, you keep saying no crank.
A car that can not crank and can never be started unless push started,
with a M/T STICK gear box.
ANSWER: ?
seems to me its flooding. , no>? soaking wet spark plug tips?
when EFI , floods a car , WOT cranking clears the flood.
Wide open throttle, its in you operator guide, RTM.
so if flooding, what i do us cut power to the fuel pump
the crank it dry. (black smoke out the tail, and then sputters an runs and stalls)
then, i try only test fuel. that is right,, no fuel pump power.
and make sure my engines sounds perfect with just test fuel.
if that is all true runs on test fuel,
then the problem is FUELING ONLY>
all in the span of 10mins work.

see scotty do that here.
http://www.youtube.com/watch?v=064Ilsz8Fzg&feature=player_detailpage#t=1

this is a very old car is this a TBI car, a very old single injector
engines or MPI , multipoint injection.

read the wiki, see all those engines.
and EFI
which one do you have.

http://en.wikipedia.org/wiki/GMC_S-15
yours is LB4 or L35 engine?
APPLES and ORANGE different. ! TBI/ MPI.

Oct 08, 2013 | Cars & Trucks

1 Answer

89 GMC S15 Jimmy getting fuel to the throttle body but not through it


The pick up coil and module need to be replaced in the distributor.This is where your injectors get there pulse.

Oct 02, 2013 | 1989 GMC S-15 Jimmy

1 Answer

I have an 1987 gmc jimmy s15 with a tbi 2.8 v6 with about 201000 miles on it.I've been haveing a few issues with a bad miss and revs at idle and now is blowing black smoke. I've changed the plugs...


Bad miss & erratic idle can be the T.P.S. had the same problem on an 89 S10 & 91 Sonoma. As for black smoke sounds like oil in cylinders. If the truck has REALLY bad blow by & REALLY worn P.C.V. Valve that can make it smoke too. If not then probably the piston rings with that many miles.

Nov 04, 2012 | Cars & Trucks

1 Answer

Need a diagram of allthe sesors on a 1990 S15 jimmy TBI 4.3Wseries


you need a haynes repair manual you can buy at any auto parts stores

Nov 22, 2011 | 1990 GMC S-15 Jimmy

2 Answers

Firing order diagram for 1986 GMC S15 2.8L


For this models:
1986 GMC S15/T15 4WD P/U 2.8 liter V-6 VIN "R"
1986 GMC S15/T15 4WD Jimmy 2.8 liter V-6 VIN "R"
1986 GMC S15/T15 2WD P/U 2.8 liter V-6 VIN "R"
1986 GMC S15/T15 2WD Jimmy 2.8 liter V-6 VIN "R"

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Hope helped woth this. Remember rated this help. Good luck.

Nov 24, 2009 | 1986 GMC S-15

1 Answer

I have a 89 gmc jimmy s15 everything works on the except the spee


if it is cable driven, then unplug it at the trans an spin the inside of the cable with a drill at slow speed and see if the speed moves, if not then change the cable.

Aug 14, 2009 | 1988 GMC S-15

1 Answer

Where is the fuel pump relay for a 1991 gmc jimmy?


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Relay - Fuel Pump 1991 GMC Truck S15 Jimmy 2WD 4.3L TBI 6cyl The Relay - Fuel Pump Under hood, driver side, upper firewall, mounted in relay block

Jul 02, 2009 | 1991 GMC S-15 Jimmy

1 Answer

Over heating 89 gmc S15 4x4 4.3


do you hear the converter rattling?? and you can start the truck and feel the end of the exhaust and see if it feels like it is blowing the exhaust out

Apr 15, 2009 | 1998 GMC Jimmy

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