1990 Ford F150 "large vacuum hose top" Questions

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Question about Ford F-150

3 Answers

vacuum hose on top o' the passenger side wheel well that goes to nothing and leads out from a large (about 8" long X 4" diameter) canister. Nothing seems to change when i plug it. idle bounces between

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Question about Ford F-150

1 Answer

...vacuum hose . It is located on top of the motor where the intake manifold(from the filter....follow the large flex hose) attaches to the motor. There are a total of three(3) hoses coming into some ...

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...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 reservoir attached to a large round metal black ...

...large vacuum leak on the engine, the surge up and down is the computer trying to slow the idle. Use a bottle of propane gas and a torch adapter with a rubber hose on it, spray the gas around the top ...

Question about Ford F-150

1 Answer

...large vacuum hose. If your car as a V engine and a carburetor you may have to remove the air cleaner to see the tops of the valve covers. The PCV is probably not bad, you can check that by shaking it ...

...large EVAP leak is detected... Which means one of the 3/4 inch vacuum hoses slipped off or is deteriorated! More than likely the hose connection to the back of the "top-middle" section (intake ...

Question about Ford F-150

1 Answer

...large vacuum connections on top of the canister to the throttle body. Check the canister itself, if it's cracked, it must be replaced. If all that tests out, have the system smoke-tested for leaks. ...

...large diameter hose (about 12mm OD) going to it? If it did, this is the vacuum feed to the brake master cylinder. If it had two smaller hoses and an electrical connector going to it this is your EVAP ...

Question about Ford F-150

1 Answer

...a large hose going to the top of it, a small vacuum hose going to the back of the throttle body on the intake manifold, and a large hose going down to the oil mist separator on the side of the

Question about Ford F-150

1 Answer

...a vacuum source, so there is a large open nipple on the intake behind the throttle body on top of the engine-with it disconnected, chances are real good it will not even start with that large a

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