how come my fuel level and coolant temp gauges dont work?
11-13-2010, 04:36 PM
#1
Senior Member
Thread Starter
iTrader: (4)
Join Date: Nov 2007
Location: Mechanicsville Virginia
Posts: 715
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1989 Turbo Trans Am gta
Engine: 383 78mm turbo
Transmission: Th350 rmvb with brake
Axle/Gears: 9 bolt 3.45s
how come my fuel level and coolant temp gauges dont work?
I swapped in a 2002 4th gen firebird dash in my trans am and got 97 gauges for it. The tach gauge works as well as the volt gauge, lights work also. The fuel gauge goes to 0 when i switch the ignition to on but doesnt go past that. i have the wire from the sender unit hooked up to A2 on the plug but nothing happes A1, A5 nad A13 all have power and the fuel sender unit works fine. Is the resistance the same? or do i need some sort of resistor?
The water temp gauge just goes from off to max and stays there when the ignition is on the on. The temp. sensor is new and it is connected to A17.
am i missing anything here?
The water temp gauge just goes from off to max and stays there when the ignition is on the on. The temp. sensor is new and it is connected to A17.
am i missing anything here?
11-15-2010, 07:29 AM
#2
Senior Member
Thread Starter
iTrader: (4)
Join Date: Nov 2007
Location: Mechanicsville Virginia
Posts: 715
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1989 Turbo Trans Am gta
Engine: 383 78mm turbo
Transmission: Th350 rmvb with brake
Axle/Gears: 9 bolt 3.45s
Re: how come my fuel level and coolant temp gauges dont work?
any ideas?
11-15-2010, 04:27 PM
#3
Senior Member
iTrader: (1)
Join Date: Mar 2005
Location: San Antonio
Posts: 646
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1981 Camaro; 1986 Z28
Engine: LT1; LT1
Transmission: 6 speed; 6 speed
Axle/Gears: 3.73; 3.42
Re: how come my fuel level and coolant temp gauges dont work?
I can't remember the pin locations off the top of my head but try this:
if you are sure you have ignition power on one side of the gauge, then disconnect the water temp and fuel level. Jump the water temp plug directly to the block and you're gauge should move to the max position. If not, you have a break in the wire or a bad sending unit. Do the same for the fuel level wire. Jump the sending unit wire going to the gauge (NOT THE IGNITION) directly to ground and you should be able to watch the gauge move as you ground it. If not, you have a bad connection.
if you are sure you have ignition power on one side of the gauge, then disconnect the water temp and fuel level. Jump the water temp plug directly to the block and you're gauge should move to the max position. If not, you have a break in the wire or a bad sending unit. Do the same for the fuel level wire. Jump the sending unit wire going to the gauge (NOT THE IGNITION) directly to ground and you should be able to watch the gauge move as you ground it. If not, you have a bad connection.
11-15-2010, 04:29 PM
#4
Senior Member
Join Date: Jan 2009
Location: DE
Posts: 611
Likes: 0
Received 2 Likes
on
2 Posts
Car: 1990 Firebird Formula
Engine: LB9 - 5.0 TPI
Transmission: 700R4
Axle/Gears: 2.73, LSD
Re: how come my fuel level and coolant temp gauges dont work?
Check fuses? Maybe a bad ground? Does the gauge have a voltage regulator?
Thread
Thread Starter
Forum
Replies
Last Post
Ghettobird52
Tech / General Engine
16
07-05-2024 11:18 PM
