Re: 2000 JGC V-8 overheating/ occasionally only !!
 

spin the fan while it is cold and if there is a drag on the fan then it is ok

SnoMan wrote:

> On Sat, 16 Dec 2006 21:10:26 -0500, "James" <no one@bellsouth.com>
> wrote:
>
> >Remember two things...... the car NEVER overheats at idle or at slow speed.
> >It only overheats at higher speeds, going up steep hills. And, the
> >overheating is erratic. The very same conditions/ temp/ road grade/ etc
> >will not give the same result each time.
> >
> >Whaddduuuyaaaa think ??
>
> My nickle is on the clutch fan. I know it was replaced 1 year ago but
> I strongly suspect that is is the culprit here. Its engagement temp is
> too high and thats why sometimes it cools and sometimes not. Ram air a
> lone will not always cool the engine especailly a V8 in a GC because
> it is a tight fit. At the link below you will find instruction on have
> to tweak the adjustment of a clutch fan because most of the time a
> little twaeking will cure them.
>
> http://forum.snoman.com/viewtopic.php?t=79
> -----------------
> TheSnoMan.com

Re: Re: 2000 JGC V-8 overheating/ occasionally only !!
 

On Sun, 17 Dec 2006 17:45:10 -0500, philthy <dbrider@cac.net> wrote:

>spin the fan while it is cold and if there is a drag on the fan then it is ok


Not alway true, all it does tell you if the fluid has leaked out of it
because it leaks in to clutch area normally when it sits overnight
after gettting warm. It does not tell you if the bimetal coil is
working properly for your tempature conditions.
-----------------
TheSnoMan.com

Re: Re: 2000 JGC V-8 overheating/ occasionally only !!
 

On Sun, 17 Dec 2006 17:45:10 -0500, philthy <dbrider@cac.net> wrote:

>spin the fan while it is cold and if there is a drag on the fan then it is ok


Not alway true, all it does tell you if the fluid has leaked out of it
because it leaks in to clutch area normally when it sits overnight
after gettting warm. It does not tell you if the bimetal coil is
working properly for your tempature conditions.
-----------------
TheSnoMan.com

Re: Re: 2000 JGC V-8 overheating/ occasionally only !!
 

On Sun, 17 Dec 2006 17:45:10 -0500, philthy <dbrider@cac.net> wrote:

>spin the fan while it is cold and if there is a drag on the fan then it is ok


Not alway true, all it does tell you if the fluid has leaked out of it
because it leaks in to clutch area normally when it sits overnight
after gettting warm. It does not tell you if the bimetal coil is
working properly for your tempature conditions.
-----------------
TheSnoMan.com

Re: Re: 2000 JGC V-8 overheating/ occasionally only !!
 

On Sun, 17 Dec 2006 08:07:26 -0800, Outatime <user@example.net> wrote:

>I had this EXACT problem 10 years ago with a Ford vehicle.
>
>Problem: clogged radiator. After replacement, heat was never a problem
>again.


I do not think so here because at times is runs cool under same
conditon as it sometimes runs hot. If raditor was plugged it would be
hot all the time. Also, anoth thing, if you do not here the clutch fan
humping when gauge is climbing you know it is not doing its job.
-----------------
TheSnoMan.com

Re: Re: 2000 JGC V-8 overheating/ occasionally only !!
 

On Sun, 17 Dec 2006 08:07:26 -0800, Outatime <user@example.net> wrote:

>I had this EXACT problem 10 years ago with a Ford vehicle.
>
>Problem: clogged radiator. After replacement, heat was never a problem
>again.


I do not think so here because at times is runs cool under same
conditon as it sometimes runs hot. If raditor was plugged it would be
hot all the time. Also, anoth thing, if you do not here the clutch fan
humping when gauge is climbing you know it is not doing its job.
-----------------
TheSnoMan.com

Re: Re: 2000 JGC V-8 overheating/ occasionally only !!
 

On Sun, 17 Dec 2006 08:07:26 -0800, Outatime <user@example.net> wrote:

>I had this EXACT problem 10 years ago with a Ford vehicle.
>
>Problem: clogged radiator. After replacement, heat was never a problem
>again.


I do not think so here because at times is runs cool under same
conditon as it sometimes runs hot. If raditor was plugged it would be
hot all the time. Also, anoth thing, if you do not here the clutch fan
humping when gauge is climbing you know it is not doing its job.
-----------------
TheSnoMan.com

Re: 2000 JGC V-8 overheating/ occasionally only !!
 

SnoMan wrote:

>> I had this EXACT problem 10 years ago with a Ford vehicle.
>>
>> Problem: clogged radiator. After replacement, heat was never a problem
>> again.

> I do not think so here because at times is runs cool under same
> conditon as it sometimes runs hot. If raditor was plugged it would be
> hot all the time.

As I said earlier, I had this exact problem 10 years ago. It often ran
very hot, other times it ran cool. As the OP mentioned, it runs hot
after freeway driving, as mine did. Experience has taught me that a
plugged radiator will not always run hot all of the time.

Re: 2000 JGC V-8 overheating/ occasionally only !!
 

SnoMan wrote:

>> I had this EXACT problem 10 years ago with a Ford vehicle.
>>
>> Problem: clogged radiator. After replacement, heat was never a problem
>> again.

> I do not think so here because at times is runs cool under same
> conditon as it sometimes runs hot. If raditor was plugged it would be
> hot all the time.

As I said earlier, I had this exact problem 10 years ago. It often ran
very hot, other times it ran cool. As the OP mentioned, it runs hot
after freeway driving, as mine did. Experience has taught me that a
plugged radiator will not always run hot all of the time.

Re: 2000 JGC V-8 overheating/ occasionally only !!
 

SnoMan wrote:

>> I had this EXACT problem 10 years ago with a Ford vehicle.
>>
>> Problem: clogged radiator. After replacement, heat was never a problem
>> again.

> I do not think so here because at times is runs cool under same
> conditon as it sometimes runs hot. If raditor was plugged it would be
> hot all the time.

As I said earlier, I had this exact problem 10 years ago. It often ran
very hot, other times it ran cool. As the OP mentioned, it runs hot
after freeway driving, as mine did. Experience has taught me that a
plugged radiator will not always run hot all of the time.