1999 Chevrolet Tahoe "vacuum leak" Questions

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...vacuum leak in the brake booster also causes a large vacuum leak for the engine. To verify that this is actually the problem, go outside the vehicle with the hood open. Find the large brake fluid ...

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...detects leaks in the Evaporative Emission System (EVAP) purge line using engine intake manifold vacuum. If pressure does not increase, the Engine Control Module (ECM) will check for leaks in the ...

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Question about Chevrolet Tahoe

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...vacuum on the engine while its running, As to say if it had a leak in a valve cover it should not be leaking while its running, only when the engine it turned off. Hope this tip guides you in the ...

Question about Chevrolet Tahoe

1 Answer

...vacuum leak, the vacuum actuator for that blend door is not working, if you can see the actuator, see if you can move the arm, if you can it is working, also use a vacuum tester on it to pull vacuum ...

...vacuum leak. vacuum leaks for 4x4 are a pain to find and follow, i had the same prob with my jeep so i ran a vacuum hose from the accuator directly to the motor to make sure everything else was in ...

...hoses especailly at the map sensor. Here the thing you got. a vacuun leak. on a 5.7 a vacuum leak causes random misfire, by definition P0300 means 2 cylinders or more. By experience its a vacuum ...

Question about Chevrolet Tahoe

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...vacuum leak around that cylinder. There is also the chance that cylinder is low on compression, but I thank that's a pretty remote possibility. Ignition component failure should be fairly easy to ...

...vacuum leak and the most common cause for the vacuum leak is the plenum gaskets. With the vehicle cold you should be able to spray carb spray around the area where the plenum bolts to the heads and ...

Question about Chevrolet Tahoe

1 Answer

...Diagram 2001 5.3 LITER WHERE CAN I GET A GOOD VACUUM HOSE DIAGRAM FOR TROUBLESHOOT A LEAK The diagram of the vacuum system of this engine is under the hood on the federal emission system

Question about Chevrolet Tahoe

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...vacuum leak at throttle body gasket,check for vacuum leak at pcv valve,the throttle body cable could be in a bind causing pull accelerate cable. if check engine light is flashing problem ...

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