Jeep Wrangler Forum

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-   -   Would bad sending unit gasket on the gastank cause rough idle? (http://www.wranglerforum.com/f218/would-bad-sending-unit-gasket-on-the-gastank-cause-rough-idle-147537.html)

DrZ 03-20-2012 03:18 AM

Would bad sending unit gasket on the gastank cause rough idle?
 
I got slightly rough idle in my 89 wrangler 4.2. I do know the gas tank seal is bad. I am wondering if that is causing a vacuum leak and resulting in rough idle?

kik 03-20-2012 07:57 AM

A slightly rough idle could be a number of things from vacuum, carb, fuel, etc. Could a bad gasket on the fuel tank cause it. I think it might be something else. Maybe you need a tune up. That gasket should be replaced anyway. Are you leaking fuel?

brt 03-20-2012 08:49 PM

No, a leak at the sending unit gasket will not cause it to idle rough.

Kahuner 03-21-2012 08:53 PM

I have an '89 too.

Do you have the stock carb and ignition? The stock carb is a POS!! Stock ignition is just as bad. Makes a big difference as to where we start to getting the engine to run better.

So; what are we working with?

Kahuner


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