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  1. G

    AC Compressor Constantly Running

    the low pressure switch serves that function. it is on the drier.
  2. G

    AC Compressor Constantly Running

    low pressure switch only. if it is really hot and humid, I dont know that it will cycle...
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    700R4 Gear “Hunting”

    I edited my post. The wire I am thinking of is actually on the gage/idle fuse. It might be purple down by tthe transmission, running on the driver side. I know because mine rubbed through from touching the transmission and I had an issue with my gage fuse popping. Here is a link to my thread on...
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    700R4 Gear “Hunting”

    There is a TCC wire that is also on the gage/idle fuse. Runs along the driver side of the trans. I had a rub through that blew the fuse. Might be it is rubbed through enough to cause issues but not blow the fuse yet? Edited to correct fuse circuit
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    Air Conditioning Advice Needed

    Sounds like maybe the compressor is locked up and when the clutch engages it bogs down the engine?
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    Sanden AC compressor for Suburban with front and rear air

    Dryer and orifice tube for sure. The compressor I linked above works with stock hoses. Condenser is your call, really. Make sure the fan shroud is tight to the radiator to maximize fan performance at idle and low speed. Flush the system good. Pull the rear TXV to make sure it isn’t plugged up...
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    Sanden AC compressor for Suburban with front and rear air

    this is what I am running in my dual air 1990. with a good fitting shroud, good clutch fan and a small pusher I run with AC on attached to my trans cooler i have no complaints at all. been running it for 4 or 5 years now. if the truck has been sitting in the sun it takes a while to overcome the...
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    Temperature hunting at stop lights

    Does the shroud sit up nice and tight to the radiator? The shroud needs to be up against the radiator for the fan to pull the air through. Is 180 the right thermostat? My 1990 350tbi runs a 195. Maybe 454 is different? Also, the gauge isn’t always super accurate….you might be just fine at just...
  9. G

    Help finding the DRAC 1990 V1500 Suburban

    Is that a 1990 cluster? Never had my 1990 cluster fully out, so not sure what the backside looks like. My DRAC I have had out and it is under the dash and doesn’t look like that box on the back of the cluster.
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    Help finding the DRAC 1990 V1500 Suburban

    DRAC is under the dash below the radio. If you remove the crossover duct it will be visible. It sets on the backside of the metal dash. You can reach back and find it with the duct in place once you know exactly where it is.
  11. G

    timing issue

    timing is set to 0 with the bypass unplugged. Do not plug in the bypass with the motor running. If it was running fine before, I’d double check whatever you touched.
  12. G

    1987 V10 305 TBI - Good until it just falls on its face.

    I’d look very closely at the plug wires, distributor cap, and rotor. Could be stray voltage if the ICM is ok. Wires with cracked insulation, cracked cap, bad cap terminals, loose rotor under the cap, etc can all send stray voltage that will zap ICM wires and kill the engine like an ignition problem.
  13. G

    700R4 Gear “Hunting”

    solenoid is accessible with a pan drop. but if it doesn't hunt in D, it probably isnt the TCC lockup unless yours has been modified to not lockup in 3rd. then it could still be the solenoid if it has been changed to not lock in 3rd.
  14. G

    1987 GMC V1500 TBI crank but no start

    If you get the fuel pump sorted, you might verify timing is right with rotor pointing at no 1 TDC and the wire firing order.
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    700R4 Gear “Hunting”

    Are you sure it is the 3/4 shift bouncing or is it the TCC hunting? Could be an issue with the TCC lockup solenoid? Does the issue go away if you keep it in D?
  16. G

    1991 suburban sunvisors in 1987 pickup? Will they fit?

    My 1990 burb has the inboard clips
  17. G

    Power window problem (yes I searched)

    pretty sure the whole system grounds back through the driverside switch and to the busbar above the ebrake. not sure if the switch has to be connected for it to work, but at least the driverside ground needs to be in place.
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    Latest thinking on replacement gauges

    No doubt the DD gauges are awesome. If I were to make the leap, I’d go all the way to their top of the line. But I still keep rocking the stock gauges, though. Partly because they still work, partly because they are nostalgic, and partly because of the high cost of the DD gauges.
  19. G

    Oil pressure sensor?

    my 1990 burb has a combo oil pressure sensor and and fuel pump bypass all in one behind the distributor. I'd guess your 89 is the same. I think i remember somebody doing a write up about the Dakota digital gauges and adding an oil pressure sensor for the gauge by the filter. might have been at...
  20. G

    Bus Bar Ground

    windows are on a separate circuit breaker. if both switches are out and you have power, id suspect the ground or maybe the driverside switch or the relay. i think passenger ground goes back through the driverside switch before the bus bar. if you jump the switch, do the locks work?
  21. G

    Bus Bar Ground

    should be under the dash above the kick panel above the e brake. you will have to get upside down to look up under there with a light. prob has 6 prongs, mounted to metal. prob only 2-3 actual grounds attached. the photo is the wiper delay module
  22. G

    What have you done to your square lately??

    yeah, code 13 is prob a bad O2 or maybe a wiring issue....it is an open signal i think. code 44 is lean, prob bc of the bad O2 sensor or connection to the ECM so the fueling is being affected.
  23. G

    Power door locks

    That’s the place! You should be able to see it if you look up under the dash. But I’d run through the diagnostics in the wiring manual to nail down the issue.
  24. G

    Power door locks

    A DVM is not a jumper wire. You need a jumper wire to jump the switch. Also check the ground side of the circuit, especially if both switches are not working. Ground for for the passenger and driver side goes all the way back to the driver side bus bar above the E brake on the kick panel. I...
  25. G

    Driving lamps/Fog lights? Anyone running them on their c10?

    I have some 6in diode dynamics LED in a flood pattern mounted to the underneath side of my rear bumper. They put plenty of light out for all my backing up needs!

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