Date: Wed, 20 Jul 2016 17:59:53 -0400
Reply-To: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject: Re: Cooling fan issues
In-Reply-To: <CA+az7_60Dy9qFzX_YxinhJp7EovSdxrT80S+s68U+Hq2SXU7_g@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"
John,
What you have going on there is wrong. Something is wired wrong, you have an incorrect relay or the AC pressure switch is defective. It is likely the fan is cycling off when it is needed the most.
From the radiator switch there is only low speed and very high speed.
From the AC system there is low speed and a higher speed, both which rely on that fan resistor. The high speed from the radiator completely bypasses that resistor.
Dennis
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of John Rodgers
Sent: Tuesday, July 19, 2016 1:19 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Cooling fan issues
Thanks Ken. On ol' Red, my '88 GL, when I turn the ignition switch to "ON"
but not to the start mode, and then turn on tne AC , the high speed fan immediately kicks in. If I go ahead and drive it, the high speed fan runs a while then cycles. Seems to do what is is supposed to do.
However, on the Carat, that little test does not work. The HS fan does not turn on, period. Yet when driving, with AC off, and in stop and go traffic, the low speed fan does cycle. Engine hasn't ever gotten hot enough to operate the mid speed fan.
For both the engine cooling and AC on ol' Red, the fan seems to be running properly.
John
On Jul 19, 2016 10:16, "kenneth wilford (Van-Again)" <kenwilfy@comcast.net>
wrote:
> John, did you read this yet?
> http://www.vanagain.com/troubleshoot-your-radiator-fan/
>
> When you turn in your AC your low speed fan should come on. I am
> thinking the fan low speed isn't working (bad resistor) and the mid
> speed is what you think is the low speed. Do the tests i my write up
> and let us know what you find.
>
> Ken
>
> On Tue, Jul 19, 2016 at 10:34 AM, John Rodgers <jrodgers113@gmail.com>
> wrote:
>
>> Finally got my Carat out of the shop, but there are problems. Low
>> speed fan comes on as it should but the other two speeds don't work.
>> Also, when the AC is turned on, with the ignition on, but not in the
>> start position. The high speed fan should come on. But it does not.
>>
>> The fan switch has been replaced with new, but no joy for fan operation.
>>
>> Suggestions?
>>
>> Thanks,
>>
>> John
>>
>
>
>
> --
> Thanks,
> Ken Wilford
> John 3:16
> www.vanagain.com
>
| 
