| Author |
Message |
Luis (Sundancer)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, December 20, 2004 - 3:12 pm: | |
I have a problem on my 6v92 temp guage. It will jump from 160 deg to 240 on an instant than return to 160 or so. I think it is not telling me true readings. The engine has never shut down due to heat problems. There is plenty of coolant. How big a deal is this? I know its not hot because sometimes it'll say 240 when only been running for 2-3 minutes, than it'll go down to normal readings. Do you think its a sending problem, a defective guage, a lose wire? Is it a pain to change out? Will I have to get a loan to fix it? Just thought I would put it out here to see what you sages think! |
J.C.B. (Eagle)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, December 20, 2004 - 3:16 pm: | |
Check your wires especially the ground. |
TWO DOGS
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, December 20, 2004 - 4:32 pm: | |
also believe loose wire |
frank-id
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, December 20, 2004 - 5:00 pm: | |
It is my opinion that there is no problem. On many vehicles, the thermostat will snap on after the coolant reaches a set temperature. The temp sender reacts, hi temp is reflected, more lower temp coolant passes sender and gage shows new temp. I have often put my hand on piping or hoses to check for the advance of engine hot coolant. Some thermostats will open and close many times before the operating temp is stablized. Just my view.. Frank |
david anderson (Davidanderson)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, December 20, 2004 - 7:16 pm: | |
I can kind of agree with Frank's point about the snap on effect, but if that is the case the t-stat should be changed. I've tested my t-stats in boiling water and they always open slowly as they reach 170.
If they are snapping open at 240 something must be wrong.
Also, I've seen in the past that if the ground wire is bad the gauge will peg out one side or the the other. Or, if the sender is failing the gauge will peg, also.
I've had this happen on my oil pressure gauge before. Perhaps it is the same on the temp gauge.
David |
Pete RTS/Daytona
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, December 20, 2004 - 7:31 pm: | |
First remove the wire from the sender while the bus is turned on - does the temp go full high ??
Yes then you need to look for an open wire or loose connection
If the temp gauge DID NOT go high when you removed the wire from the sender - then ground the wire at the sender - if the temp gauge goes high then you are looking for a short in the wiring (chaffed or pinched wire ??)
Pete RTS/Daytona |
James Maxwell (Jmaxwell)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, December 20, 2004 - 8:58 pm: | |
Bad wire, most likely ground. A thermostat with "snap action" is a bad thermostat even if ure using boiling water and ice water to activate it with--maybe fast acting under those conditions, but not "snap acting". |
Luis (Sundancer)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, December 20, 2004 - 10:12 pm: | |
Thanks to all. I will play with this tomorrow and hopefully report back with positive results. Thanks again.
Luis |
Frank Allen
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, December 21, 2004 - 11:03 am: | |
I dont know, but suspect a wire bad, mine did it and the oil press at the same time, a few mins later it all went back to normal, im sure this was a ground problem, will be watching with interest to see what it is
Frank Allen |