<VV> Spyder Temp-Press light diagnosis - update

[Jim Becker]

Do you know that the buzzer itself is present and working?  Have you 
actually heard it?  If not, it could be sending you down a wrong path.  The 
next thing I would try is pulling the wire off the temperature sender and 
grounding it.  The buzzer should sound off.  If it doesn't, a bad 
temperature sender is back at the top of the suspect list.

Jim Becker

-----Original Message----- 
From: Frank DuVal via VirtualVairs
Sent: Monday, December 02, 2019 2:40 PM
To: hugo at aruncoaches.co.uk
Cc: VirtualVairs at corvair.org
Subject: Re:  Spyder Temp-Press light diagnosis - update

That should have sounded the buzzer at the same time.

Frank DuVal

> On Dec 2, 2019, at 12:36 PM, Hugo Miller via VirtualVairs 
> <virtualvairs at corvair.org> wrote:
>
> Sounds more like an over-sensitive temp sensor to me?
>
>> On 2019-12-02 12:14, Doug Mackintosh via VirtualVairs wrote:
>> A new piece of information: Today I drove the car to run a couple of
>> local errands. Total trip probably about 5 miles. Everything was
>> normal until about the half-way point when the Temp-Press light came
>> on and stayed on for the rest of the trip. At one of my intermediate
>> stops, I pulled the connector off the Pressure switch while it was
>> running, and the light stayed on (so it was not grounding through the
>> switch). The engine temperature at this point was low (not even warmed
>> up) and there was no buzzer. Before I shut it off after getting home
>> it was still illuminated. Less than an hour later I went out and
>> turned the ignition on (the light came on as it should) then
>> disconnected the wire from the oil pressure switch and the light went
>> off (as it should).
>> So it looks like it is a short to ground in the Oil pressure warning
>> wiring somewhere between the switch and the dashboard, and it appears
>> to be intermittant but "sticky", possibly temperature related, then
>> un-shorting when it cools off. Next step will be to try to find where
>> the wiring is shorting to ground.
>>> On Dec 1, 2019, at 4:53 PM, Doug Mackintosh via VirtualVairs 
>>> <virtualvairs at corvair.org> wrote:>> OK guys, I am looking for some ideas 
>>> or experience-based explanations for a problem I have had.> The car is 
>>> my daughter's 1964 Spyder. Have been driving it regularly with no 
>>> problems. I recently drove it to Farmville (a little over 1 hour away). 
>>> When I drove back home about 10 minutes from home the Temp-Press light 
>>> came on and stayed on.> There were no other symptoms. The temperature 
>>> gage did not go into scary territory, there was no lifter clacking, loss 
>>> of performance, problems idling at stops etc. The fan belt was still on. 
>>> No noises. Oil level OK.> I continued driving home and switched it off 
>>> (the light stayed on the whole time until I switched it off).> I figured 
>>> it most likely was either a pressure sensor failure or a shorted wire. 
>>> Today (5 days later) I did some diagnostics by testing the light status 
>>> after disconnecting the pressure sensor wire, then after grounding the 
>>> pressure wire and then the temperature warning wire heading to the dash. 
>>> Based on my testing everything was working as it should with the engine 
>>> off. I then started the engine and the light went off as normal after it 
>>> started.> So at this point it seems to have "fixed" itself.> Ideas?
>>
>> -- Doug Mackintosh Corsa member since 1996 Corsa/NC member since
>> 1996, Virtual Vairs member Corvair owner 1969-1971 and 1996-on
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