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  1. U

    '94 350: good cold starts, struggles to crank when restarting or still warm

    1994 Stock TBI 350 w/4L60E So this summer i noticed that if i shut the truck off to go in and shop it would struggle to turn the engine over when i got back in, like it was fighting some massive compression now. Once it got to the 2nd crank rotation it fired right up. If it sat for 2+ hours it...
  2. U

    Tcc shake

    So heres what lead me to today. Drove to a concert 2 weeks ago, while parked noticed a rattling with A/C. Poked around figured ac compressor. Drove home with ac off. Went to look into it next day, sound is more from bellhousing and now hear it at idle regardless of ac. Drop the trans (4l60e)...
  3. U

    Brakes flash with right turn signal

    Ok, i hate electrical gremlins. Replaced the turnsignal harness in the steering wheel earlier this year. After awhile the cam wouldnt reset the right turnsignal after making the turn. Now with the right turnsignal on it flashes all my brake lights. (Fronts good). If i apply the brake it stops...
  4. U

    Low Voltage but good Battery and Alternator

    So my trucks been acting up a lot lately. Lost a good ground and it used my steel braided fuel line to till they popped lol. rewired the battery connections to insure a solid ground to motor, chassis, and frame. Truck will now start, but only shows 10v on the gauge and 11v at the PCM. voltmeter...
  5. U

    Wont crank after fuel leak

    So ive been moving into a new house. Backed the truck into the drive way and started smelling gas and i think smoke. Shut it off, found the return line leaking. Replaced that then found a leak in the supply line haha. Replaced that. Now i have no cranking with the key. Fuses are all good. I...
  6. U

    3rd gear issues. Any thoughts before i find a local Tranny Shop.

    Read thru the sticky posts already. 1994 4l60e transmission with corvette servo. Rebuilt it over last winter, finally dropped it in this fall and have been driving the truck the past 2 months. Other day was coming home when 3rd gear sent the RPMs up. Parked it for a few weeks while too busy to...
  7. U

    Acc-Batt fuse on 94 Blazer

    I got the woring harness installed in my truck from a 1500 blazer. I just noticed the 30amp....breaker (?) was hot in the fuse panel. I pulled it and the truck still started. Radio worked. What all runs thru that and could cause this? Truck was sitting for 2 days and was still not running when i...
  8. U

    Someone wanna check over this data

    Just curious if this all looks for for idle data with a warm engine. Im not having any issues with the motor but never hurts to review the data.
  9. U

    1994 4L60e showing no signs of life.

    Hello all. So i swapped a 1994 4L60e into my 1985 K10 after marrying it to a 92 tbi 350 (Meaning a lot of places this could have gone wrong). Finally to the point of road testing after i got the engine running nicely....but it wont go into any gears. Motor doesnt flinch with shifting. I...
  10. U

    NP241C in a 85 Squarebody

    Ok so i figured this forum would be better then the 80s Truck forums because it has to deal with the wiring of 90s trucks more so. Situation: I have an 1985 that im rebuilding. 350 TBI Engine, 4L60e Transmission and all wiring are from a 1994 K1500. The NP241C transfer case is from a 1990-91...
  11. U

    4.10 gears and PCM chip...

    So I have a 1985 square body k20 that I'm dropping the entire power train and wiring harness from a 1994 k1500 into. 350/4l60/np241c. My question is I know the chips are set for both the transmission and the gearing. Current PCM I have is a BJLF for 3.08/3.42. I know the BJLH is for 3.42/3.73...

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