1998 GMC Sierra won't start

Asked by Jeffrey Sep 23, 2018 at 10:05 PM about the 1998 GMC Sierra 1500 C1500 SLE Extended Cab SB

Question type: Maintenance & Repair

So I have a 98 GMC Sierra 2wd with the 5.0l I have
went through and replaced the fuel pump, filter,
plugs wires, timing chain and gears with it in time,
the crank position sensor, and the spider fuel
injector. I'm getting fuel and spark. It cranks but
won't fire up and run I have a charged battery and it
will fire up if I put ether to it but then dies

4 Answers

9,730

Did you install the updated injection system? Check the fuel pressure regulator. Are the injectors getting cycled? Can you hear one click if you listen.and did you check the inj fuse?

1 people found this helpful.

Yes I replaced the entire unit, when you cycle the key you can hear the fuel pump kick on as well as the injector unit

I'm going to check the coolant temp sensor in the morning. I was reading on another post that said when that goes it over fuels flooding the motor out.

Do you smell fuel in the exhaust pipe go back and sniff the pipe and see if strong gas smell if yes flooding from gas regulator on the fuel rail vsg or vvsg vacuume solenoid check for any vacuume hoses cracked or bad connections. It governs that regulator for injectors. Check temp sensor wire also.

Your Answer:

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 6,857 nationwide Sierra 1500 listings starting at $3,975.

Postal Code:

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,810
  • #2
    dragonflyoffshore
    Reputation
    11,740
  • #3
    John Saffrahn
    Reputation
    11,690
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
211 Great Deals out of 5,943 listings starting at $3,995
Used Ford F-150
289 Great Deals out of 15,384 listings starting at $1,712
Used Chevrolet Silverado 2500HD
12 Great Deals out of 1,160 listings starting at $8,999
Used GMC Yukon
19 Great Deals out of 741 listings starting at $5,998
Used Dodge RAM 1500
6 Great Deals out of 81 listings starting at $4,000
Used Toyota Tacoma
55 Great Deals out of 1,032 listings starting at $8,708
Used Chevrolet Tahoe
19 Great Deals out of 716 listings starting at $5,995
Used Ford F-250 Super Duty
29 Great Deals out of 1,154 listings starting at $8,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.