I need some help
Thread Starter
Junior Member
Joined: May 2005
Posts: 83
Likes: 0
From: St Charles,Il
Car: 90 Full size Jimmy 4" lift
Engine: 350 TBI
Transmission: 700r4
Axle/Gears: 12 bolt rear 14 bolt front 3.73s
I need some help
I have a 91 rs i've had it for about 2 months now.The problem is that the headlights only work for about 20 minutes.After 20 minutes they start flashing on and off.Problem 2 is that the dashlights don't work at all,they worked until about a week ago then went out.Problem 3 is that sometimes my gauges quit working its happened twice when im driving they just stop working and then start working again.I've checked all my fuses and changed all 4 headlights.Anyone have any ideas as to what the problems are?Thanks
Member
Joined: Jun 2004
Posts: 383
Likes: 0
From: Wanatah, IN
Car: 1990 TA, 1995 Sierra 1500
Engine: 305tpi to LT1 mod, 305 TBI
Transmission: 4L60E with 3000 Stall, 5spd
its would more than likely be some loose wires, you will have to find them im assuming. I had problems with my taillights going on and off and it was a bad wire.
Moderator
Joined: Feb 2000
Posts: 7,015
Likes: 2
From: Schererville , IN
Car: 91 GTA, 91 Formula, 89 TTA
Engine: all 225+ RWHP
Transmission: all OD
Axle/Gears: Always the good ones
First thing I would check is the grounds for the dash and headlites.
FLaky dash ground could cause what u r getting.
Work ground side first if u cant find anything there, then go thru the power side
later
Jeremy
FLaky dash ground could cause what u r getting.
Work ground side first if u cant find anything there, then go thru the power side
later
Jeremy
Thread Starter
Junior Member
Joined: May 2005
Posts: 83
Likes: 0
From: St Charles,Il
Car: 90 Full size Jimmy 4" lift
Engine: 350 TBI
Transmission: 700r4
Axle/Gears: 12 bolt rear 14 bolt front 3.73s
Well i fixed the headlights today.It ended up being a bad ground.Im gonna try and fix the dashlights tomorrow if i have time.Thanks for the help.
Joined: Sep 2004
Posts: 5,906
Likes: 240
From: Chicagoland Suburbs
Car: 1989 Trans Am GTA
Engine: LT1, AFR 195cc, 231/239 LE cam.
Transmission: M28 T56
Axle/Gears: 3.23 10bolt waiting to explode.
There are two grounds under the dash that have a big effect on your dash lights and gauges. I think they are just to the left of the column assuming they are in the stock location.
I only had one ground, the other was cut off in the harness and if I turned my head lights on the gauge lights would come on, but the gauges themselves would go dead. Also my turn signal indicators would come on in a mirror like fashion. Both would be on, but if i turned the left signal on, the right indicator would blink while the left indicator remained solid.
I only had one ground, the other was cut off in the harness and if I turned my head lights on the gauge lights would come on, but the gauges themselves would go dead. Also my turn signal indicators would come on in a mirror like fashion. Both would be on, but if i turned the left signal on, the right indicator would blink while the left indicator remained solid.





