JAG RUNNING ROUGH

1986 Jaguar XJ6

Tiny

jtech31

February, 28, 2011 AT 2:38 AM

86 jaguar xj6 running rough and does not want to idle, also gas pooling in intake, checked pressure reg. Replaced cold start inj, plugs.

FOUND 4480 RELATED QUESTIONS

Running Rough

27 ANSWERS
34 IMAGES

Idles Rough/changed Ects

37 ANSWERS
3 IMAGES

1 Answer

Tiny

alfredxj683

August, 6, 2011 AT 1:42 AM

I believe it is common for jags to leak from the hoses coming in from the railing. I had the same problem; I saw some gasoline pooling near the intake but also saw a wet hose. So I tightened it, and then read up on it. Found out. It happens. So always keep a screwdriver in your car. About the rough idle. It is also something that i'm always batlling with. So far, I can make her idle on Park/Neutral at 700-800rpms. Achieving this with the "idle SPEED screw". But when I pull it into Drive, she has fits about it.
So then I go to the idle MIXTURE screw (that, for some reason, no one dares mention)
and when I screw it in all the way. The car keeps running, which boggles me (car shakes but stays on). I notice that if I only unscrew it 1 or 1.1/2 turns out. It idles better. But I don't know this to be a good thing.

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