i have a 1998 gmc 1500 will run when i pur fuel in throutel body but then dies

Asked by Feb 23, 2014 at 10:24 AM about the 1998 GMC Sierra 1500 C1500 SLE Standard Cab LB

Question type: Maintenance & Repair

2 Answers

108,675

Sounds like your fuel pump is shot. Also is it a vortec engine? If so I don't advise putting anything in the throttle body like gas. If it just happens to backfire thru intake you will be replacing the intake too. It's plastic and will blow into pieces. Still finding parts of mine in the back yard.

9,855

Try a fuel pressure test first. The fuel pump is a pain to get out. If the pressure is low try the filter first. If the pressure is still low I recommend disconnecting the line at the fuel filter and using what ever life the pump has left to drain the tank. It's also easier to take the drive shaft out. BTW take your VIN to the parts store. '98 GMC fuel pump's changed have way. Early models have the steel lines the newer one has hoses to the plastic ports on the pump, need the quick connect hose disconnect tools. You can look under the box over the frame at the pump to see which pump you have.

Your Answer

Add photo

Related Questions

  • 1998 GMC hit pot hole and died on the spot 2 answers

    98 gmc 1/2 ton, quit running after hitting a pot hole - died on the spot. Figured it was the fuel pump - so replaced it - engine cranks, but will only run when gas is poured in the throttle body? An...

    GMC Sierra 1500

    -

    Maintenance & Repair

  • 1998 gmc sierra 1500 wont start 1 answer

    I have a 1998 GMC Sierra 1500 and it will not start. It died on me while I was driving and I had it brought back to my house. I have replaced the fuel filter, the starter and the battery. And I had...

    1998 GMC Sierra 1500 C1500 SLE Extended Cab LB

    -

    Maintenance & Repair

  • Ok I have a 1994 GMC 1500 sierra 5.0 305 it dies in gear sound awesome in idle but dies if not on gas 2 answers

    Ok I have a 1994 GMC 1500 sierra 5.0 305 it dies in gear sound awesome in idle but dies have changed the tps,the EGR Vacuum Solenoid the Idle Air Control Valve , TBI Base Gasket,Fuel Pressure Regulat...

    1993 GMC Sierra 1500 C1500 Extended Cab LB

    -

    Maintenance & Repair

  • 1998 gmc 1500 4.3liter 4 answers

    Truck won't start wants to but won't changed fuel pump, fuel regulator, mass airflow, and checked ignition control and crankshaft sensor

    1998 GMC Sierra 1500 C1500 SL Extended Cab SB

    -

    Maintenance & Repair

  • 1992 gmc sierra 1500 acceleration problems 5 answers

    Okay so i have a 1992 Gmc sierra 1500. and i just got it running it idles great. but for some reason when i put the pedal down about half way it dies like it is starving for fuel any ideas?

    1992 GMC Sierra C/K 1500

    -

    Maintenance & Repair

Search GMC Sierra 1500 Questions

GMC Sierra 1500 Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 4,910
#2 John Saffrahn
John Saffrahn
Reputation 3,490
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 3,060
View All

Related Models For Sale

Used Chevrolet Silverado 1500
1,732 Great Deals out of 166,791 listings starting at $1,800
Used Ford F-150
2,229 Great Deals out of 208,628 listings starting at $1,499
Used Dodge Ram 1500
434 Great Deals out of 11,301 listings starting at $1,000
Used Toyota Tacoma
487 Great Deals out of 38,724 listings starting at $2,900
Used GMC Yukon
351 Great Deals out of 16,934 listings starting at $2,500
Used Chevrolet Tahoe
566 Great Deals out of 27,189 listings starting at $999
Used Ford F-250 Super Duty
351 Great Deals out of 47,404 listings starting at $1,795
Used Chevrolet Camaro
154 Great Deals out of 32,700 listings starting at $1,995
Used GMC Sierra 2500
164 listings starting at $4,995

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
38 Great Deals out of 41,409 listings starting at $20,121
2016 GMC Sierra 1500 For Sale
91 Great Deals out of 3,773 listings starting at $17,695
2015 GMC Sierra 1500 For Sale
100 Great Deals out of 3,880 listings starting at $15,400
2014 GMC Sierra 1500 For Sale
98 Great Deals out of 4,237 listings starting at $14,495
2013 GMC Sierra 1500 For Sale
67 Great Deals out of 2,120 listings starting at $9,260