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  1. Jims86

    tbi issues, on my 88 gmt400

    One thing to try, is to power the fuel pump manually, with a switch, or twist wires together..just temporary, bypassing ecm control and the oil pressure switch. Then use that for a day and see what happens....i dunno if it would take care of the gear change stall, but it might, especially if the...
  2. Jims86

    Edelbrock Q-Jet?

    Yup, Carter was under contract when Rochester couldn't keep up with demand. They will have "Caryer" stamped in the casting.
  3. Jims86

    Edelbrock Q-Jet?

    Go for it! Is your current carb giving you headachs?
  4. Jims86

    Edelbrock Q-Jet?

    That's the best carb that will ever wear the Edelbrock name plate.
  5. Jims86

    Irish's pickup from hell, the 454SS.

    Just stick 1.7 roller rockers on the valves.
  6. Jims86

    The never ending 700r4 Lockup questions haha

    Yarp.
  7. Jims86

    The never ending 700r4 Lockup questions haha

    Yup...I dont think there is an error code for the high gear switch, so you shouldnt get a light.
  8. Jims86

    Towing weight?

    Beats me...unless they didnt have a transfer case back then that would handle that type of load.
  9. Jims86

    The never ending 700r4 Lockup questions haha

    I dont remember the old wire colors, but that plug is labeled A B C D The wire in A goes to the brake switch B goes to pin C7 C not used D goes to A7
  10. Jims86

    Just bought an '86 C20 Suburban

    My stands corrected...dont see a lot of 81s.
  11. Jims86

    tbi issues, on my 88 gmt400

    Thats what I said when I discovered that about a month ago, followed soon by an "awww shit" when my kid shut the computer off befor I could save it.
  12. Jims86

    The never ending 700r4 Lockup questions haha

    ECM plug pins http://www.ebay.com/itm/like/121160443036?lpid=82
  13. Jims86

    tbi issues, on my 88 gmt400

    fuck me running...here it is! ECM TBI Injector Driver Failures (long) Posted by Tony H on June 30, 01 at 07:18:43: In Reply to: Re: TBI injectors posted by Bryan on June 29, 01 at 23:47:31: In addition to a faulty or dirty injectors, symptoms like both yours can sometimes be caused...
  14. Jims86

    tbi issues, on my 88 gmt400

    Hey Chris, not doubting your mechanical abilities, you definately have your shit together there, but dying when shifting kinda screams vac leak. No accel over 40 sounds like a plugged exhaust, but I know you are catless. And the timing issue...nuttier than Squirrel shit(Thanks for that saying...
  15. Jims86

    tbi issues, on my 88 gmt400

    Fuel moves too quick in these for vapor lock.
  16. Jims86

    Why can't I burn rubber?

    That, along with age.
  17. Jims86

    The never ending 700r4 Lockup questions haha

    Each plug cavity is numbered on the side where the wires come in. Row designator will be at the end of each row. Small plug is A and B, large is C and D.
  18. Jims86

    tbi issues, on my 88 gmt400

    Wont hurt, will just be 4 degrees lower in timing, and it will not advance or retard. will trigger a light. When its warm, and doesnt want to start, hook a timing light to the coil wire to see if there is a delay in spark. May be one of those elusive power/ ground issues. TBI does not hold...
  19. Jims86

    The never ending 700r4 Lockup questions haha

    Nahh...your ok. Take a look at cavity C7 on your ecm plug, and see if there is something there already.
  20. Jims86

    The never ending 700r4 Lockup questions haha

    Pass side...I remember my 86 trans having a pressure switch on the pass side, not sure of 85. I think they have 2 pressure taps on that side, that were done away with in 87.
  21. Jims86

    The never ending 700r4 Lockup questions haha

    Ooofff...thats a rough one. Would have to be there to show you....unless someone else here can 'Splain it....like Retro, or if you know someone that does car stereos. Is there a pressur switch on the right side of your trans, above the pan? Its been so long since I have seen a 1st gen 700r4...
  22. Jims86

    The never ending 700r4 Lockup questions haha

    Yup, thats it. As far as wiring, the light blue wire(high gear input)from the trans, will wire into cavity C7 on the ECM plug, and the tan and black lockup wire, which is already in cavity A7(for downshifting the TH400) is already there, and you will most likely find the other end of it in the...
  23. Jims86

    The never ending 700r4 Lockup questions haha

    No it will be completely different. The C20 most likely had a th400. To do this the right way, you will need a PROM from a 700r4 truck. Code ASDU will work just fine, then, you can wire the lockup to work properly off the ECM. You can probably find one real easy on ebay, or, 89suburban may have one.
  24. Jims86

    The never ending 700r4 Lockup questions haha

    Refresh my memory again, what did the TBI engine comeout of?
  25. Jims86

    Just bought an '86 C20 Suburban

    The E carbs were mostley a california deal, the ESC was on all of them from 82 to 86, but even then on select models. A vehicle meant to have an E carb, wont have vac advance, but just a 4 wire pigtail for the ECM controlled timing. The ESc dizzys with the Vac advance were there to try to curb...

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