i have a 1991 s-10, i have replaced the fuel pump but it still wont start.


Asked by flipper1994 Jul 12, 2014 at 06:43 PM about the Chevrolet S-10

Question type: Maintenance & Repair

It was spitting and sputtering bad. I changed the fuesl pump and fuel filter. Still wont start. Getting fire but wont pump gas correctly

7 Answers


pull the plugs and check them and see if they are wet........unhook the fuel line from the engine and then unhook the line from the front of the fuel filter and blow air thru it.......sounds like trash in the line

2 out of 2 people think this is helpful.

Some times there is more than one fuel filter


with out more info it could be severl thangs need to cheak fuel pressure and see if it is hold curect fel pressure fuel regulater may be bad


Might be the fuel pump relay , the canisters the pump sits in .tbi., fuel injecters...an for the sputter....coil pack


Several things to check, You need to measure the fuel pressure during cranking. Possible faulty installation of the fuel pump, bad wire connector at the fuel sending unit or bad ground on the frame for the fuel pump.Check the MAF sensor first. Have seen this before, make sure it is not broken and if it is not, bring it to Advance Auto ( Or similar) and have them check it out. Could possibly be very dirty, like mine was.


I have same problem with my 1987 s-10 2.8 v-6 I've had it for 8 years and it has always ran real good.My truck keeps throwing a code 44 which is oxygen. Sensor, I replaced it and reset computer and it still runs like crap and after few minutes of running it throws another code 44.check your aldl which is the wiring plug in directly beneath steering wheel under dash.u will need a paper clip and ground the a terminal to b terminal.so just basically bend the clip into a horseshoe and plug it into the top right slot and very next slot to left with key off and then turn key on and watch service engine light flash it will flash a code 12 three times meaning its doing a diagnostic check and the next code or codes will be your trouble codes.you need to know how to read the codes by how many times it flashes.for example the code 12 will flash one time pause and then flash twice,that means twelve and for my code 44 it flashes 4 times pauses and flashes 4 more times.I HOPE this helps you if you have a service engine light coming on.

1 out of 1 people think this is helpful.

Anybody that can help me with my 1987 s-10 can hit me on Facebook my name is Michael Mask from Macon Georgia.I think my problem is fuel pressure regulator it still runs like crap.I've changed plugs,wires,fuel filter,vacuum lines.it keeps throwing code 44 and a little moisture is coming out of driver side tail pipe.I had duel exhaust put on a couple years ago.

Your Answer

Add photo

Related Questions

  • 92 S 10 WONT FIRE 7 answers

    My 92 s10 will not fire i have replaced fuel pump /injectors im getting fuel and spark but no fire it wants to start at first but wont ?? any suggestions

    1992 Chevrolet S-10 2-Door Regular Cab


    Maintenance & Repair

  • I have a 1994 Chevy S-10 6 cylinder, where is the fuel pump 1 answer

    Went for a drive and shut truck off and it wouldn't start, has spark and have replaced fuel filter. Where is the fuel pump, I understand that 1994 is the last year that you. Could get to the fuel pu...

    Chevrolet S-10


    Maintenance & Repair

  • 1987 S-10, is the fuel pump in gas tank? 5 answers

    Truck drives for for short periods, then starts missing, backfiring, etc., then will be fine again. Very intermittent problem, seems worse in hot weather. Have changed alternator, fuel filter, wonde...

    1987 Chevrolet S-10


    Maintenance & Repair

  • whats wrong, pump wont shut off and keeps spraying fuel? 3 answers

    i recently parked my truck in my driveway and it slid down and hit a tree, i left it running however though, i went three miles to town and then i came back home and parked it. the next morning i w...

    1987 Chevrolet S-10


    Maintenance & Repair

  • 96 s10 4.3 vortec will turn over but will not start 4 answers

    my truck will turn over but wont start.. already checked sparkplug and I am getting fire... I can hear fuel pump kick on when I turn the key forward,,,

    Chevrolet S-10



Looking for a Used S-10 in your area?
CarGurus has 1,659 nationwide S-10 listings starting at $999.

Search Chevrolet S-10 Questions

Chevrolet S-10 Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 1,410
#2 John Saffrahn
John Saffrahn
Reputation 740
#3 FordNut
Reputation 640
View All

Related Models For Sale

Used Ford Ranger"
278 Great Deals out of 6,512 listings starting at $1,400
Used Chevrolet Colorado"
240 Great Deals out of 15,992 listings starting at $1,999
Used Chevrolet Silverado 1500"
2,207 Great Deals out of 138,354 listings starting at $1,900
Used GMC Sonoma"
14 Great Deals out of 534 listings starting at $2,200
Used Toyota Tacoma"
512 Great Deals out of 19,502 listings starting at $2,000
Used Ford F-150"
3,117 Great Deals out of 178,552 listings starting at $1,450
Used Dodge Dakota"
147 Great Deals out of 4,138 listings starting at $1,495
Used Nissan Frontier"
337 Great Deals out of 15,788 listings starting at $1,995
Used Chevrolet Blazer"
12 Great Deals out of 1,563 listings starting at $500
Used GMC Canyon"
109 Great Deals out of 9,191 listings starting at $2,495
Used GMC Sierra 1500"
972 Great Deals out of 63,563 listings starting at $1,000
Used Dodge Ram 1500"
625 Great Deals out of 13,084 listings starting at $1,900
Used Chevrolet Tahoe"
851 Great Deals out of 32,360 listings starting at $175
Used Jeep Wrangler"
974 Great Deals out of 49,487 listings starting at $1,800
Used Ford Mustang"
667 Great Deals out of 42,299 listings starting at $1,695