Temp gauge moves when cranking car over?????
06-14-2009, 12:56 AM
#1
Member
Thread Starter
Join Date: Oct 2005
Location: Lost Wages, NV
Posts: 126
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1988 IROC
Engine: 305 TPI
Transmission: 5 speed
Axle/Gears: 3.08 Posi 10 Bolt w/ aluminum drums
Temp gauge moves when cranking car over?????
I am trying to start my car for the first time in 5 years. I have installed a new, GM factory temp gauge in the dash, and the only part of the cooling system that is not brand new, including all sensors, is the upper rad hose, which was replaced before I tore the car down..
when I try to crank my car, the temp gauge moves with each attempt to fire.
it starts at 100 and after the fourth or fifth crank its pointing straight up where 300 would be.
i dont think thats normal
.....Do i have a bad ground??
any suggestions???
when I try to crank my car, the temp gauge moves with each attempt to fire.
it starts at 100 and after the fourth or fifth crank its pointing straight up where 300 would be.
i dont think thats normal
.....Do i have a bad ground??any suggestions???
06-14-2009, 10:26 AM
#2
Supreme Member
iTrader: (14)
Join Date: Aug 2006
Location: Central NJ
Posts: 12,650
Likes: 0
Received 44 Likes
on
42 Posts
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Temp gauge moves when cranking car over?????
what does it do once the car is running? sounds normal. If the sender is grounded out, the gauge will max out and stay there
06-14-2009, 02:17 PM
#3
TGO Supporter
Join Date: Sep 2000
Location: So.west IN
Posts: 6,775
Likes: 0
Received 26 Likes
on
23 Posts
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
Re: Temp gauge moves when cranking car over?????
The gauge is grounded through the ignition switch during crank. It's normal.
The gauge should max immediately anytime you start (crank) the engine and then return to whatever temperature the engine is at the time.
It shouldn't slowly climb (during crank) and obviously, it shouldn't stay maxed if the engine is cold.
The gauge should max immediately anytime you start (crank) the engine and then return to whatever temperature the engine is at the time.
It shouldn't slowly climb (during crank) and obviously, it shouldn't stay maxed if the engine is cold.
Last edited by deadbird; 06-14-2009 at 02:22 PM.
06-14-2009, 08:35 PM
#4
Member
Thread Starter
Join Date: Oct 2005
Location: Lost Wages, NV
Posts: 126
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1988 IROC
Engine: 305 TPI
Transmission: 5 speed
Axle/Gears: 3.08 Posi 10 Bolt w/ aluminum drums
Re: Temp gauge moves when cranking car over?????
The car doesnt run yet, I seem to have no fuel pressure after installing the Walbro 255 pump...
but thanks for the info guys, sounds like I was worried about nothing..
but thanks for the info guys, sounds like I was worried about nothing..
Thread
Thread Starter
Forum
Replies
Last Post
Ghettobird52
Tech / General Engine
15
12-29-2023 08:23 AM
AkDrifted
Engine/Drivetrain/Suspension Parts for Sale
6
08-17-2015 07:45 PM
db057
TBI
10
08-11-2015 10:11 PM
