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Re: [T3] Loud fuel pump and heat sensors.


On 23 Jul 2002, at 12:11, Mike Wodkowski wrote:

> So I just got back from Canada. 1500 more trouble free miles.
> 
> Jim, I brought two of the three heat sensors you sent to me. A couple
> things: One was labeled 2000 ohms, and the other 2500 ohms. But on my
> ohm-meter, they both gave readings of about 1750 ohms at about 80 deg.
> fahrenheit. This was with the setting of my ohmmeter at RX10.

I'm surprised, but I took my readings at somewhat cooler temps. I would not 
have expected them to read the same, however. I thought I did this carefully, 
but I may have made a mistake.

> I out the 2500 ohm one in my car and drove about 15 miles and took a
> reading. 360 ohms! 

I'd be tempted to try the 3000 Ohm one, then.

> So now I'm asking myself, is my engine just getting way too hot?
> 
> My valves are set at 004 on the intakes, .006 on the exhaust.
> 
> On another note, my fuel pump seems awfully loud in the past week. I can
> hear it running inside the car. Didn't used to be able to do that.

Check underneath and see if one of the rubber mounts has come loose so 
that the pump could sag down and touch the front beam somewhere. If there 
was dirt in your tank and it has clogged up your fuel filter then this will make 
the pump sound louder. It can also bring the pressure down and this would 
lean out the engine, making it run hot, so this is something to wonder about. 
The best test would be to put a pressure gauge on there and take it for a test 
drive while you watch the pressure. If the fuel pressure sags under load 
replace the filter.

> Still, no starting problems for the whole trip.

VERY glad to hear it!

-
Jim Adney
jadney@vwtype3.org
Madison, WI 53711-3054
USA

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