Search results

  1. Archer-97k1500

    88 k2500 tbi 350 - no injector pulse or fuel pressure.

    Anybody come across these problems or have an exact location for where the 12v supply for the fuel pump circuit begins? Looked at a few different wiring diagrams and they are not showing whats before the fuse
  2. Archer-97k1500

    88 k2500 tbi 350 - no injector pulse or fuel pressure.

    Hey guys. Working on a 88 k2500 with a tbi 350. Engine ran before letting it sit for a couple years. Now theres no power to the fuel pump and the injectors arent firing. Got lots of spark and the engine will start if u dump a bit of fuel down the throttle. If i jump the fuel pump wiring with...
  3. Archer-97k1500

    Changed EVERYTHING, Still misfiring.... 97K1500-5.7vortec (stock)

    Ok!!! So after months of checking wiring in my limited spare time i found that a common ground for the pcm on the back of the passenger side cylinder head had broken off. Repaired the wire and shes good to go!!! Thanks for all the input guys, really appreciate it!!! -Archer
  4. Archer-97k1500

    Changed EVERYTHING, Still misfiring.... 97K1500-5.7vortec (stock)

    Exactly what im thinking at thins point. Going to test a pile of wiring next
  5. Archer-97k1500

    Changed EVERYTHING, Still misfiring.... 97K1500-5.7vortec (stock)

    Yep. Even created new ones
  6. Archer-97k1500

    Changed EVERYTHING, Still misfiring.... 97K1500-5.7vortec (stock)

    ....yes
  7. Archer-97k1500

    Changed EVERYTHING, Still misfiring.... 97K1500-5.7vortec (stock)

    New sock on the fuel pump. The injectors were wired. But that injector set is still in the old motor.
  8. Archer-97k1500

    Changed EVERYTHING, Still misfiring.... 97K1500-5.7vortec (stock)

    This engine ran perfect before it was installed into my truck. Thats why i know its not that. If anything it could be the wiring to the dist. Im in the process of checking wiring
  9. Archer-97k1500

    Changed EVERYTHING, Still misfiring.... 97K1500-5.7vortec (stock)

    Not a gas cap in this case. Replaced the entire fuel system from tabk pickup to injector. Thx for the reply
  10. Archer-97k1500

    Changed EVERYTHING, Still misfiring.... 97K1500-5.7vortec (stock)

    Yeah it seems more and more like i pinched something sometime. Im in the middle of checking the wiring harness. I checked the spider inj plug. Its good. Thx for the suggestions
  11. Archer-97k1500

    Changed EVERYTHING, Still misfiring.... 97K1500-5.7vortec (stock)

    Thanks for the reply. The distrubutor has never been touched on either the old or the new motor. Also if it was out a tooth the pcm would throw a cam correlation code. These are very sensetive to timing changes.
  12. Archer-97k1500

    Changed EVERYTHING, Still misfiring.... 97K1500-5.7vortec (stock)

    Thanks for the reply. I'll double check the spider injector harness connector for damage. I was carefull not to pinch any wiring during either swap but again ill double check that too.
  13. Archer-97k1500

    Changed EVERYTHING, Still misfiring.... 97K1500-5.7vortec (stock)

    Im thinking the same thing.. only problem is ill have to goto the dealer. Ive tried those bluetooth dongle to ur phone apps but i dont think its good enough...
  14. Archer-97k1500

    Changed EVERYTHING, Still misfiring.... 97K1500-5.7vortec (stock)

    Thanks for the reply! The PCM is not storing codes. The only indication that the engine is misfiring is that the engine light is flashing. I have a couple spare egr valves and they all make the engine run the same...
  15. Archer-97k1500

    Changed EVERYTHING, Still misfiring.... 97K1500-5.7vortec (stock)

    Thanks for the reply. Vacuum booster holds pressure. Verified all vacuum lines are ok. Keep in mind that BOTH engines are acting the same.
  16. Archer-97k1500

    Changed EVERYTHING, Still misfiring.... 97K1500-5.7vortec (stock)

    This is a long shot but here goes... got the truck from my uncle when he passed away so I'm trying to keep her alive. I blew the transmission up when I got it so I removed it and had it rebuilt. after installing the rebuilt transmission, the engine started misfiring (at idle and light load)...

Latest posts

Members online

Total: 1,173 (members: 15, guests: 1,158)

Forum statistics

Threads
64,517
Messages
1,395,691
Members
51,883
Latest member
wjauto1777

Share this page

Top