95 Tahoe Electrical Issues ?

So I've been having intermittent heater issues since I bought the truck last spring. Finally the heater made a nice dieing noise and then I smelled burnt wires. No more heater. Then the same day I notice a quick flash of a light in the upper left of the dash. I thought it said check breaks but it says Check Gauges, while simultaneously the oil pressure gauge will be sitting at 0, and then with a stomp of the gas gets back to normal. Each time I come to a stop and get going the oil gauge will drop to 0 and bounce back to normal pressure as I accelerate.

Then when I went into the car wash the wipers started going on there own. They stopped for a bit and then started going again in intermittent fashion. I reemed on the wiper lever and it seemed to fis the issue.

Does anyone know if these 3 issues just a coincidence or are these symptoms all due to the same problem and what this problem may be?

Re: 95 Tahoe Electrical Issues ?

They could all be tied in one.. Sounds like you have one heck of a short going on.

Is there an after market radio in there? Or Remote start? Might start by pulling the radio and/or the dash panel to inspect the wiring for alterations or burning.

The oil pressure could be with it, but just to be on the safe side, I would test the oil pressure in the truck. Double check the easy one.. Is the oil up to the proper level?

Re: 95 Tahoe Electrical Issues ?

KoryG
Did the Heater Fan motor quit on the no heat problem? Hot wire the fan motor to see if it works: If that works, GM was notorious for the fan switch going bad on that model. The oil pressure problem is probably and o-ring on the oil pickup tube: on 5.7's that is another common problem on that engine. Yes, they also had a recall on wiper motors. Circuit Board on wiper motor cracks and causes intermittent malfunction. This is just a quick off the top of head recall but I have also replaced some heater actuator motors that control blend doors on heater box. In case the fan motor is blowing on all speed positions. hope this helps..

Re: 95 Tahoe Electrical Issues ?

Hey thanks Autotech. As I have a spare Silverado I've been driving the 5.3l and haven't had time to dig into the 350. I definitely need to get it figured out before mid April so I can have trouble free towing.

Re: 95 Tahoe Electrical Issues ?

Sounds like ground issues your dash is grounded by your door switches.....wipers are grounded by the mounting bolts,you will find a diode in your power plug connector for wipers...it/s inside the connector ifin you have delay wiper option.....also check connector on oil sending unit....does your dome light work if not go right to the door switches

Re: 95 Tahoe Electrical Issues ?

There are TSB's and recalls for the wiper's, grounds, and MANY other items. You need someone with an alldata account to open them all up.

Re: 95 Tahoe Electrical Issues ?

^^Great Information, thank you Bob! For now it's been parked. With this ARCTIC COLD we've been having I have lost motivation to touch anything metal

Went to work with -10, warmed up to 10, currently -2. Frostbite weather with the wind chill and no fun that's for sure. On the bright side, the bright side is getting longer!

I will get on that alldata.

Bob_VT said:

There are TSB's and recalls for the wiper's, grounds, and MANY other items. You need someone with an alldata account to open them all up.

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