Okay...thanks to all for the advise. Here is where things stand:

The car is overheating and even when hot the radiator fan will not come on.

1) When I start the car and turn on the A/C neither fan comes on. I
understand the condensor fan should come on?

2) When I remove and short the connector on ECT switch A (the one by the
thermostat) the radiator fan comes on when the igition is on.

3) When I remove and short the connector on ECT switch B with the ignition
turned on and then off the radiator fan comes on.

4) I put 12V across the condensor fan and it came on.

So....both fans seem to work fine. I doubt that both ECT switch A & B have
failed but I guess I should check at least switch A to verify. I am
guessing that the problem must be the radiator fan control module?

Thanks so much for all your input.

Bill

 

In article <RHhIb.92451$UY6.80946@twister.nyroc.rr.com>, "WORSS"
<wrector@nospam.nycap.rr.com> wrote:

> Okay...thanks to all for the advise. Here is where things stand:
>
> The car is overheating and even when hot the radiator fan will not come on.
>
> 1) When I start the car and turn on the A/C neither fan comes on. I
> understand the condensor fan should come on?
>
> 2) When I remove and short the connector on ECT switch A (the one by the
> thermostat) the radiator fan comes on when the igition is on.
>
> 3) When I remove and short the connector on ECT switch B with the ignition
> turned on and then off the radiator fan comes on.
>
> 4) I put 12V across the condensor fan and it came on.
>
> So....both fans seem to work fine. I doubt that both ECT switch A & B have
> failed but I guess I should check at least switch A to verify. I am
> guessing that the problem must be the radiator fan control module?
>
> Thanks so much for all your input.
>
> Bill

You are probably right. You should also check the level in your radiator
each day before you drive. You should also make sure the water pump is
working correctly--not leaking. The radiator fan that is not working
correctly could cause other problems such losing fluid from the radiator
when it overheats. I suggest that you take it to a mechanic that you trust
if you are not able to fix it yourself.

 

In article <RHhIb.92451$UY6.80946@twister.nyroc.rr.com>, "WORSS"
<wrector@nospam.nycap.rr.com> wrote:

> Okay...thanks to all for the advise. Here is where things stand:
>
> The car is overheating and even when hot the radiator fan will not come on.
>
> 1) When I start the car and turn on the A/C neither fan comes on. I
> understand the condensor fan should come on?
>
> 2) When I remove and short the connector on ECT switch A (the one by the
> thermostat) the radiator fan comes on when the igition is on.
>
> 3) When I remove and short the connector on ECT switch B with the ignition
> turned on and then off the radiator fan comes on.
>
> 4) I put 12V across the condensor fan and it came on.
>
> So....both fans seem to work fine. I doubt that both ECT switch A & B have
> failed but I guess I should check at least switch A to verify. I am
> guessing that the problem must be the radiator fan control module?
>
> Thanks so much for all your input.
>
> Bill

You are probably right. You should also check the level in your radiator
each day before you drive. You should also make sure the water pump is
working correctly--not leaking. The radiator fan that is not working
correctly could cause other problems such losing fluid from the radiator
when it overheats. I suggest that you take it to a mechanic that you trust
if you are not able to fix it yourself.

 

In article <RHhIb.92451$UY6.80946@twister.nyroc.rr.com>, "WORSS"
<wrector@nospam.nycap.rr.com> wrote:

> Okay...thanks to all for the advise. Here is where things stand:
>
> The car is overheating and even when hot the radiator fan will not come on.
>
> 1) When I start the car and turn on the A/C neither fan comes on. I
> understand the condensor fan should come on?
>
> 2) When I remove and short the connector on ECT switch A (the one by the
> thermostat) the radiator fan comes on when the igition is on.
>
> 3) When I remove and short the connector on ECT switch B with the ignition
> turned on and then off the radiator fan comes on.
>
> 4) I put 12V across the condensor fan and it came on.
>
> So....both fans seem to work fine. I doubt that both ECT switch A & B have
> failed but I guess I should check at least switch A to verify. I am
> guessing that the problem must be the radiator fan control module?
>
> Thanks so much for all your input.
>
> Bill

You are probably right. You should also check the level in your radiator
each day before you drive. You should also make sure the water pump is
working correctly--not leaking. The radiator fan that is not working
correctly could cause other problems such losing fluid from the radiator
when it overheats. I suggest that you take it to a mechanic that you trust
if you are not able to fix it yourself.

 

In article <RHhIb.92451$UY6.80946@twister.nyroc.rr.com>, "WORSS"
<wrector@nospam.nycap.rr.com> wrote:

> Okay...thanks to all for the advise. Here is where things stand:
>
> The car is overheating and even when hot the radiator fan will not come on.
>
> 1) When I start the car and turn on the A/C neither fan comes on. I
> understand the condensor fan should come on?
>
> 2) When I remove and short the connector on ECT switch A (the one by the
> thermostat) the radiator fan comes on when the igition is on.
>
> 3) When I remove and short the connector on ECT switch B with the ignition
> turned on and then off the radiator fan comes on.
>
> 4) I put 12V across the condensor fan and it came on.
>
> So....both fans seem to work fine. I doubt that both ECT switch A & B have
> failed but I guess I should check at least switch A to verify. I am
> guessing that the problem must be the radiator fan control module?
>
> Thanks so much for all your input.
>
> Bill

You are probably right. You should also check the level in your radiator
each day before you drive. You should also make sure the water pump is
working correctly--not leaking. The radiator fan that is not working
correctly could cause other problems such losing fluid from the radiator
when it overheats. I suggest that you take it to a mechanic that you trust
if you are not able to fix it yourself.