2 questions didn't find in archives

MaxB · Post by **MaxB** » Wed Mar 14, 2007 3:22 am

1990 Jetta (Wolfsburg) N/A diesel

1. Are the sensors on the upper coolant outlet hose fitting the same? I didn't get them labled and the paper I wrote them on got lost. This is the outlet on the front of the engine, one sensor points up, the other to the driver's side. One plug has red/yellow and brown wires. Other has Orange and green/white wires. Which goes where.

2. Has anyone found a reasonably priced alternate tubing for the fuel return jumper hoses on the injectors. Dealer wants over $20 for three feet but has to order it in. Is vinyl hose eaten up by diesel, as opposed to rubber? I'm wondering if windhield washer hose might work.

I coldn't see any hose like this on Jack's site....(?)

Thanks.
Max

BlueDog · Post by **BlueDog** » Wed Mar 14, 2007 4:34 am

On eBay there's a guy that offers that hose. I bought 3 feet from him. Looks like the original stuff and works good. Someone mentioned clear hose for this application and that might be better but the eBay stuff was a good price. Ed

VWCaddy · Post by **VWCaddy** » Wed Mar 14, 2007 1:46 pm

One sensor is for the temp. gauge, one for the glow plug relay:
- http://www.4crawler.com/Diesel/CheapTri ... tureSensor

Some of the GP relay senders are resistance type (usually the A1s) and some are on/off switches (usually the A2 and A3s). An ohm meter would tell you if they are different.

dexev · Post by **dexev** » Wed Mar 14, 2007 4:08 pm

I've been using vinyl hose (.09/ft. from the hardware store) for my injector return lines for a few months, with no crazing or leaks.

MaxB · Post by **MaxB** » Wed Mar 14, 2007 4:10 pm

Thanks,
I just went to a hose specialty shop and the guy gave me about 5 feet of superthane urethane hose. I think it should work.
Thanks again,
Max

tylernt · Post by **tylernt** » Wed Mar 14, 2007 7:59 pm

Glad you got it solved. I've also heard of folks getting the colored gasoline fuel line from a motorcycle/ATV/snowmobile shop.