Charge light, Brake light and green turbo light come on when it revs up
07-31-2018, 05:00 PM
#1
Registered User
Thread Starter
Problem!!!!!
I have a 87 4x4 pick up 22rte 5 speed. Last couple times I ran the truck those 3 lights (charge, Brake and turbo light) come on when I give it throttle (parked or driving) it doesn’t effect the running of the truck just rather annoying. Any thoughts? Bad ground somewhere? Regulator and or alternator going south?
Last edited by wheelerfab; 08-02-2018 at 03:18 PM.
08-05-2018, 04:36 PM
#3
Yeah you can pretty safely ignore that bit. The TIL (turbo indicator light/lamp) is triggered by the ECU when it senses the RPM is in a range the factory turbo reaches some unknown boost, it's a preset based on rpms only there is no sensor attached for this. Far as I know the sensor was only put in with digital dashes, and there isn't any interconnect between dash and ECU.
08-10-2018, 06:02 PM
#4
Registered User
Thread Starter
Fixed it, bad voltage regulator on the alternator, the turbo light on the dash is just tied into those lights all three would come on at the same time, but it’s all fixed now
09-09-2018, 03:09 PM
#5
Registered User
same with the 3.4?
Does anyone know if this would also be true for the 5vze engines? I finished my 3.4 swap into a 93 Pickup a few months back, everything seemed fine electrical wise. Then about a week ago I started getting issues with the parking brake and battery symbol dash lights. At first they would illuminate when I pushed the brake pedal. Then they would also illuminate in time with the turn signal flasher. Then, when I put the blower fan on high. Seems to be a growing list of triggers...
I'm glad I found this post because it hadn't occurred to me that it was due to a load on the electrical system. I guess I should check the voltage coming out of the alternator? Could a failing battery even be the cause?
I'm glad I found this post because it hadn't occurred to me that it was due to a load on the electrical system. I guess I should check the voltage coming out of the alternator? Could a failing battery even be the cause?
09-10-2018, 01:19 AM
#6
Auto Electrical is pretty much all the same
Might be any of those things you mentioned .
Start and check your voltages
Could be as simple as a loose belt loose ground connection
Might be the cable to the fuse block from your battery relocation
Another place to look is how the charging harness is hooked up
The vehicle voltage is dropping below the trip point
Might be any of those things you mentioned .
Start and check your voltages
Could be as simple as a loose belt loose ground connection
Might be the cable to the fuse block from your battery relocation
Another place to look is how the charging harness is hooked up
The vehicle voltage is dropping below the trip point
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