Question about 2001 Jaguar S-Type

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What is the tourqe? vaccum leak at intake

What is the tourqe? vaccum leak at intake

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Torque, also called moment or moment of force is the tendency of aforce to rotate an object about an axis,[1] fulcrum, or pivot. Just as a force is a push or a pull, a torque can be thought of as a twist.

Loosely speaking, torque is a measure of the turning force on an object such as a bolt or a flywheel. For example, pushing or pulling the handle of a wrench connected to a nut or bolt produces a torque (turning force) that loosens or tightens the nut or bolt.

Vacuum leaks in manifold means u got a broken VACUUM hose that helps your HYDRAVAC to boost ur BRAKiNG power! Just look at ur BRAKE MASTER and u will see at the rear, there is this BiG ROUND drum, hose/pipe is attached to it, follow that hose/pipe it will lead u to the iNTAKE MANiFOLD, where air/fuel was being sucked by the ENGINE PiSTON!

Posted on Nov 09, 2010

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To test for a vaccum leak, get a can of starting fluid, with the engine running, spray around the intake manifold, the vaccum hoses, connections and fittings, where ever you spray and the engine rev's up a little, you found a leak.

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If you have pressure at the shrader valve on the fuel rail then check the regulator. Vaccum leaks can cause it to not work correctly or it is just deffective. If you have a vaccum tester, the see if you can draw a vaccum on the unit, if not then ther you go.

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You have a vaccum leak. Look under your hood for a 1/4 inch black plastic line. It can be hooked into your filter intake housing. Usually this is where the leak is. There also is a black round plastic ball shape device under the hood. This usually has a vaccum line connected, you don't want any leaks there. Those are the easy fix suggestions for a vaccum leak. If you can't find it there, look for other vaccum operated items that are model specific. Hope that helps.

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if the engine is still running lean, I would replace the Oxy sensor (s),
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