Recent content by mrdap

  1. mrdap

    '88 350 TBI Engine Noises and Idle

    Probably should pull all the spark plugs and have a look. And do a compression test. I hate that.
  2. mrdap

    '88 350 TBI Engine Noises and Idle

    It was a bit above normal idle. I had to put a sledge hammer on the throttle to keep it running. But no load, not racing. Fast idle. Yeah, I must have a vacuum leak. Or valves are shot. Checked all the vacuum hose connections today. All like new vacuum hoses, recently replaced . MAP sensor...
  3. mrdap

    '88 350 TBI Engine Noises and Idle

    No fuel pump push rod.....TBI. electric fuel pump
  4. mrdap

    '88 350 TBI Engine Noises and Idle

    Gremlins! Nasty. Per above: CODE 33 MAP SENSOR (SIGNAL VOLTAGE HIGH) ALL ENGINES IF ENGINE IDLE IS ROUGH, UNSTABLE The fuel pump is new hi-perf 1996 Vortec EP381 per Harris Tuning. If anything, fuel pressure is going to be high. Today I measured it....rock solid 11.25 psi, with engine...
  5. mrdap

    '88 350 TBI Engine Noises and Idle

    I will check into that. There was (incompetent) transmission work done twice. Thanks.
  6. mrdap

    '88 350 TBI Engine Noises and Idle

    I checked the code: CODE 33 MAP SENSOR (SIGNAL VOLTAGE HIGH) ALL ENGINES IF ENGINE IDLE IS ROUGH, UNSTABLE Tomorrow I will clear codes and start engine, see if code recurs. I believe the code is being set when the engine started to die when throttle is closed. When throttle is opened, light...
  7. mrdap

    '88 350 TBI Engine Noises and Idle

    Sounds good
  8. mrdap

    '88 350 TBI Engine Noises and Idle

    Strange problem with my 1988 GMC Jimmy today. 350 TBI, 700R4, 120,000 miles 104° F Arizona Driving, everything is normal. Good oil pressure, over 30 psi. Not overheating, under 210° around maybe 200 or 190 Alternator working properly, voltmeter at over 14 volts. All of a sudden the engine...
  9. mrdap

    Stolen!

    Very sorry to hear that. I hope you recover your investment from the insurance company.
  10. mrdap

    ****CAUTION, PLEASE READ****

    I second everything that has already been said. I have personally experienced such attempted scams three or more times. And by an apparently well known and respected forum member. Or an impersonator. Not sure which.
  11. mrdap

    FOUND: WTB Ashtray, Suburban 3rd Seat Armrest

    Hello Rusty Nail, No. This ashtry I was looking for is specific to the THIRD row bench seat in Suburbans. These ashtrays were mounted in the armrest of the third row seat. The '82-'91 Blazer/Jimmy had the ashtray for the back seat (2nd row) mounted in the interior side panel. This is a...
  12. mrdap

    GMC Grille Resto 1981

    Looks great Well done!
  13. mrdap

    Crate SBC 350 installation plan

    I suggest you Google this: "factory engine lift brackets small block Chevy" The GM factory used engine lift brackets which are now being reproduced. You can also find GM original brackets on eBay. One of them mounts on the left hand driver side front of the engine using two of the 3/8"...
  14. mrdap

    700R4 Trans Cooling Lines options/recommendations?

    Steel lines. Factory replacement reproduction steel lines are going to be your easiest route. If you have the skills and the tools you can bend your own as suggested. I would avoid rubber hose myself.
  15. mrdap

    Crate SBC 350 installation plan

    Hello, You're have a really cool set up there looks great! I think you have a solid plan there. Here's my recommendations for what it's worth: Others may agree or disagree. 1. Personally I would axe the carburetor lift plate. Go with your chains and leveler. Even if you have to remove the...
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