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General Information => Troubleshooting => Topic started by: ein bora on June 23, 2010, 11:24:18 am

Title: Temp Switch Problem
Post by: ein bora on June 23, 2010, 11:24:18 am

On my 92 eurovan when I got it had problems with the gauge cluster - namely the rpm the temp and gas gauge. Solved the rpm and gas problem and determined that the temp problem is in the 4 - wire sending unit, as I used a spare that I had and now it works better but not accurately. With the two speed fan running full tilt coming off the highway, and it's been hot and humid - it's only reading about a quarter way up on the gauge. The replacement switch has a different color and part number and has 140 degrees marked on it. The original has 120 degrees marked on it. Doing some research I find that there are a number of different temp switches available with all different part numbers and colors.
Anybody know if the gauge accuracy is determined by the switch??
Thanks.

Title: Re: Temp Switch Problem
Post by: the caveman on June 28, 2010, 05:42:08 am

I'm pretty sure the square shaped connector switches have different color codes for a reason, different engines etc