Quote:
Originally Posted by heavyequipment
The volvos I'm familiar with (most all through '88) have a buffer circuit in the instrument panel that keeps the temp gauge from actually following the temperature as long as it's in the normal range. Seems some drivers get nervous if they see the needle move too fast. IPD sells a replacement for the (plug-in) card that makes the gauge follow the actual temperature. The same thing can be achieved by soldering a jumper wire on the buffer card.
This may account for different operation of temp gages on different cars, if someone has wired out the buffer.
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I'm interested in having my temperature gauge accurately reflect the actual engine temperature. After reading the above post it sounds like this is the fix.
So, how do you jumper the buffer card?
Or, what is a part number for the IPD replacement card? (I couldn't find it on the IPD site.)