Hot Engine.
 

I have a 95 yj 4.0 liter, and the temp gauge reads about 235 degrees
and goes up and down from there. All the way to over heating but it
doesn't over heat!! Just had the head gasket replaced and did the
thermostat tonight but the temp gauge still goes up and down. Any
suggestions? Any help would be appreciated.

Thanks,

Greg

Re: Hot Engine.
 

Jerry, are you sure it's really getting hot? Those gages aren't the
most accurate around. Is it giving any other signs of getting hot?

Jeff DeWitt

jerryg wrote:
> I have a 95 yj 4.0 liter, and the temp gauge reads about 235 degrees
> and goes up and down from there. All the way to over heating but it
> doesn't over heat!! Just had the head gasket replaced and did the
> thermostat tonight but the temp gauge still goes up and down. Any
> suggestions? Any help would be appreciated.
>
> Thanks,
>
> Greg
>

Re: Hot Engine.
 

Jerry, are you sure it's really getting hot? Those gages aren't the
most accurate around. Is it giving any other signs of getting hot?

Jeff DeWitt

jerryg wrote:
> I have a 95 yj 4.0 liter, and the temp gauge reads about 235 degrees
> and goes up and down from there. All the way to over heating but it
> doesn't over heat!! Just had the head gasket replaced and did the
> thermostat tonight but the temp gauge still goes up and down. Any
> suggestions? Any help would be appreciated.
>
> Thanks,
>
> Greg
>

Re: Hot Engine.
 

Jerry, are you sure it's really getting hot? Those gages aren't the
most accurate around. Is it giving any other signs of getting hot?

Jeff DeWitt

jerryg wrote:
> I have a 95 yj 4.0 liter, and the temp gauge reads about 235 degrees
> and goes up and down from there. All the way to over heating but it
> doesn't over heat!! Just had the head gasket replaced and did the
> thermostat tonight but the temp gauge still goes up and down. Any
> suggestions? Any help would be appreciated.
>
> Thanks,
>
> Greg
>

Re: Hot Engine.
 

jerryg wrote:
>I have a 95 yj 4.0 liter, and the temp gauge reads about 235 degrees
>and goes up and down from there. All the way to over heating but it
>doesn't over heat!! Just had the head gasket replaced and did the
>thermostat tonight but the temp gauge still goes up and down. Any
>suggestions? Any help would be appreciated.
>
>Thanks,
>
>Greg

Jerry,

Have you located the wire that goes to the sending unit? If you can, try
grounding it to the engine block and see if the gauge pegs at the top. If it
does the gauge is probably still good. If it does, get a replacement sending
unit (it just screws into the engine) and put that in and then see what
happens. If all fails you can get an aftermarket gauge and mount it where it
suits you and just run the wire from the sending unit through the firewall to
hook it up. Had to replace the gauge on an 87 Cherokee and was no big deal
to do. YOU NEED TO KNOW WHAT TEMP THE ENGINE IS RUNNING AT!

Re: Hot Engine.
 

jerryg wrote:
>I have a 95 yj 4.0 liter, and the temp gauge reads about 235 degrees
>and goes up and down from there. All the way to over heating but it
>doesn't over heat!! Just had the head gasket replaced and did the
>thermostat tonight but the temp gauge still goes up and down. Any
>suggestions? Any help would be appreciated.
>
>Thanks,
>
>Greg

Jerry,

Have you located the wire that goes to the sending unit? If you can, try
grounding it to the engine block and see if the gauge pegs at the top. If it
does the gauge is probably still good. If it does, get a replacement sending
unit (it just screws into the engine) and put that in and then see what
happens. If all fails you can get an aftermarket gauge and mount it where it
suits you and just run the wire from the sending unit through the firewall to
hook it up. Had to replace the gauge on an 87 Cherokee and was no big deal
to do. YOU NEED TO KNOW WHAT TEMP THE ENGINE IS RUNNING AT!

Re: Hot Engine.
 

jerryg wrote:
>I have a 95 yj 4.0 liter, and the temp gauge reads about 235 degrees
>and goes up and down from there. All the way to over heating but it
>doesn't over heat!! Just had the head gasket replaced and did the
>thermostat tonight but the temp gauge still goes up and down. Any
>suggestions? Any help would be appreciated.
>
>Thanks,
>
>Greg

Jerry,

Have you located the wire that goes to the sending unit? If you can, try
grounding it to the engine block and see if the gauge pegs at the top. If it
does the gauge is probably still good. If it does, get a replacement sending
unit (it just screws into the engine) and put that in and then see what
happens. If all fails you can get an aftermarket gauge and mount it where it
suits you and just run the wire from the sending unit through the firewall to
hook it up. Had to replace the gauge on an 87 Cherokee and was no big deal
to do. YOU NEED TO KNOW WHAT TEMP THE ENGINE IS RUNNING AT!

Re: Hot Engine.
 

Thanks alot guys, I'll try it.
LoneGreyWolf wrote:
> jerryg wrote:
> >I have a 95 yj 4.0 liter, and the temp gauge reads about 235 degrees
> >and goes up and down from there. All the way to over heating but it
> >doesn't over heat!! Just had the head gasket replaced and did the
> >thermostat tonight but the temp gauge still goes up and down. Any
> >suggestions? Any help would be appreciated.
> >
> >Thanks,
> >
> >Greg
>
> Jerry,
>
> Have you located the wire that goes to the sending unit? If you can, try
> grounding it to the engine block and see if the gauge pegs at the top. If it
> does the gauge is probably still good. If it does, get a replacement sending
> unit (it just screws into the engine) and put that in and then see what
> happens. If all fails you can get an aftermarket gauge and mount it where it
> suits you and just run the wire from the sending unit through the firewall to
> hook it up. Had to replace the gauge on an 87 Cherokee and was no big deal
> to do. YOU NEED TO KNOW WHAT TEMP THE ENGINE IS RUNNING AT!

Re: Hot Engine.
 

Thanks alot guys, I'll try it.
LoneGreyWolf wrote:
> jerryg wrote:
> >I have a 95 yj 4.0 liter, and the temp gauge reads about 235 degrees
> >and goes up and down from there. All the way to over heating but it
> >doesn't over heat!! Just had the head gasket replaced and did the
> >thermostat tonight but the temp gauge still goes up and down. Any
> >suggestions? Any help would be appreciated.
> >
> >Thanks,
> >
> >Greg
>
> Jerry,
>
> Have you located the wire that goes to the sending unit? If you can, try
> grounding it to the engine block and see if the gauge pegs at the top. If it
> does the gauge is probably still good. If it does, get a replacement sending
> unit (it just screws into the engine) and put that in and then see what
> happens. If all fails you can get an aftermarket gauge and mount it where it
> suits you and just run the wire from the sending unit through the firewall to
> hook it up. Had to replace the gauge on an 87 Cherokee and was no big deal
> to do. YOU NEED TO KNOW WHAT TEMP THE ENGINE IS RUNNING AT!

Re: Hot Engine.
 

Thanks alot guys, I'll try it.
LoneGreyWolf wrote:
> jerryg wrote:
> >I have a 95 yj 4.0 liter, and the temp gauge reads about 235 degrees
> >and goes up and down from there. All the way to over heating but it
> >doesn't over heat!! Just had the head gasket replaced and did the
> >thermostat tonight but the temp gauge still goes up and down. Any
> >suggestions? Any help would be appreciated.
> >
> >Thanks,
> >
> >Greg
>
> Jerry,
>
> Have you located the wire that goes to the sending unit? If you can, try
> grounding it to the engine block and see if the gauge pegs at the top. If it
> does the gauge is probably still good. If it does, get a replacement sending
> unit (it just screws into the engine) and put that in and then see what
> happens. If all fails you can get an aftermarket gauge and mount it where it
> suits you and just run the wire from the sending unit through the firewall to
> hook it up. Had to replace the gauge on an 87 Cherokee and was no big deal
> to do. YOU NEED TO KNOW WHAT TEMP THE ENGINE IS RUNNING AT!