1998 GMC Sierra with 5.0 will not start.

Asked by jase Aug 14, 2018 at 08:20 PM about the 1998 GMC Sierra 1500 C1500 SL Extended Cab LB

Question type: Maintenance & Repair

I recently Had to replace the lower intake Manifold gasket and in order to do
that you have to remove the distributor. I have already placed the no. 1
piston at TDC and placed the distributor poitning towards the No. 1 spark
plug wire. I dont Understand why it will not start now, I have checked and
made sure that everything is in the right spot, i just cant igure out how to Get
it back into Time. Any Suggestions?

1 Answer
7,375

Brianator answered 5 years ago

If you've confirmed the spark plug wires are in the right place, that youve set number 1 cylinder (front drivers side) at TDC, confirmed the valves for number one are both closed and that the dizzy is pointing at number 1 plug wire you should be good to go.... set the rotor one tooth back and see if that will set it JUST before number 1 post. In my experiences if its set more or less dead center its too far, if anything you want it to lead into it a hair. While someone cranks the motor turn the distributor one way then the other, one way and it's hard for the motor to turn over, the other and it's cranks really quickly. Setting it so its about midway has been a reliable starting point for me in the past. Don't forget to confirm the dizzy is plugged in and that you have fuel and spark also

Mark helpful

Your Answer:

Related Questions

  • 1998 GMC Sierra with 5.0 will not start. 1 Answer

    I recently Had to replace the lower intake Manifold gasket and in order to do that you have to remove the distributor. I have already placed the no. 1 piston at TDC and placed the distributor poitni...

    1998 GMC Sierra 1500 C1500 SL Extended Cab LB

    -

    Maintenance & Repair

  • 1998 GMC Sierra won't start 4 Answers

    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 fu...

    1998 GMC Sierra 1500 C1500 SLE Extended Cab SB

    -

    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

  • 1993 gmc sierra will not start no spark no fuel 3 Answers

    truck cut off with wife a few days ago,thought it had run a little hot changed thermostat,and ect sensor with no change,removed battery to charge,and changed temp.gauge sensor just for the heck of it....

    1993 GMC Sierra 1500 K1500 4WD Standard Cab Stepside SB

    -

    Maintenance & Repair

  • GMC Sierra not running with new parts 3 Answers

    I have a 1992 GMC Sierra 1500 with the 4.3 L V6. Just bought all new distributor cap, distributor rotor, plugs and wires, Fuel pump and fuel filter. The truck ran great before but bought parts to pa...

    1992 GMC Sierra 1500 C1500 SLX Standard Cab SB

    -

    Maintenance & Repair

Shortcuts

Search GMC Sierra 1500 Questions

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,350
  • #2
    dragonflyoffshore
    Reputation
    11,500
  • #3
    John Saffrahn
    Reputation
    11,450
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
170 Great Deals out of 7,481 listings starting at $6,995
Used Ford F-150
315 Great Deals out of 13,484 listings starting at $4,888
Used Chevrolet Silverado 2500HD
27 Great Deals out of 1,596 listings starting at $8,999
Used Toyota Tacoma
41 Great Deals out of 764 listings starting at $9,975
Used GMC Yukon
11 Great Deals out of 919 listings starting at $5,890
Used Dodge RAM 1500
3 Great Deals out of 83 listings starting at $2,500
Used Chevrolet Tahoe
10 Great Deals out of 763 listings starting at $7,499
Used Ford F-250 Super Duty
32 Great Deals out of 752 listings starting at $2,890

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.