Up & Down Temperature Guage
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Up & Down Temperature Guage
I have a '91 Ford Explorer that I've changed the thermostat on and now it will rise to way past the mid-mark and then drop rapidly off to the one fourth mark. It then repeats the process again and again and again, etc. It NEVER stablizes.
I used a meat thermometer in the heating/cooling ventilator and the temperature seems to go up and down with the temperature guage.
Right after I put the thermostat in the truck developed a leak in the water pump and the radiator. Could that be caused by too much pressure?
The mechanic has now replaced the thermostat again and it still does the same thing.
Any suggestions?
I appreciate your help.
Thanks,
Woody Williams
I used a meat thermometer in the heating/cooling ventilator and the temperature seems to go up and down with the temperature guage.
Right after I put the thermostat in the truck developed a leak in the water pump and the radiator. Could that be caused by too much pressure?
The mechanic has now replaced the thermostat again and it still does the same thing.
Any suggestions?
I appreciate your help.
Thanks,
Woody Williams
Junior User
Joined: Feb 2000
Posts: 84
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Up & Down Temperature Guage
you are changing the wrong thing try changing the pump it may be the source of your pressure problems...my thermostat was doing the same thing...finally... it took the truck to stall alot and finally stop running altogether for me to actually figure out the real problem after changing the thermostat 3 times...
1996 Ford Explorer EB 4x4
4.0 L
at 60,000 miles (aprox) water pump
at 87,000 miles O2 sensors..
went through 3 sets of Firestone Wilderness A/T's before I got smart and looked around
now I have B F Goodrich T/A KO
thats all the problems I have had...
1996 Ford Explorer EB 4x4
4.0 L
at 60,000 miles (aprox) water pump
at 87,000 miles O2 sensors..
went through 3 sets of Firestone Wilderness A/T's before I got smart and looked around
now I have B F Goodrich T/A KO
thats all the problems I have had...
Guest
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Up & Down Temperature Guage
Make sure the thermostat is installed with the little hole in the 12o'clock position. This can cause problems. You may want to replace the radiator cap as well. They tend to weaken and cause the same symptoms. If this doesn't work, replace the water pump......
