Question about 1998 Porsche Boxster

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Engine light on they say it is a hose leak

Engine light on they say it is a vaccum hose leak

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  • baileymc Sep 30, 2009

    The engine light stays on a friend ( mechanic) says it may be a vacuum leaks on the hose

  • baileymc Sep 30, 2009

    the car seems to be running fine



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  • 34 Answers

Need more info on the problem... is car messing up what is it doing?

Posted on Sep 29, 2009


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1988 ford t bird has a vaccum leak think its going to brake booster but cant find it. 3.8 liter v-6 fuel injected motor

Use a can of starter fluid and spray around your vacuum hoses while engine is running (spray very lightly). Since the vacuum comes from the engine your engine will rev up when you get close to the leaking hose. Good luck

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95 chrysler le baron surges and dies at idle

Could be a multiple of things. There is a Mass Air Flow sensor that could be going bad. There is an IAC valve, (Idle Air Control) that could be going bad. Is the check engine light on? You could have a vaccum leak, ie; manifold gasket or broken hose. To check for manifold leak or hose leak, start vehicle and use a can of brake clean and spray around the throttle body, manifold and hoses, if there is a vaccum leak and the brake clean is sucked in, the idle will go up in rpm's. If the check engine light is on, get it scanned and see what code you have and go from there. Good luck.

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Car dies when either put into gear or pressure is applied to gas pedal, what's wrong

i would 1st check all of the vaccum hoses to see if 1 or more is leaking, or has holes in them, you can do this by running your hand along the hoses, but don't get into the fan. "while the engine is running , if you find a hose that is leaking and you hold the hole closed , the engine will run normal. then replace what defective hose, or hoses you fine, i had a friend that had the same problem, and his was a vaccum leak, hope this solves your problem.

Feb 14, 2011 | 1986 Ford Aerostar

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I have a 2000 for taurus ses. i am having problems with my vaccum system. My engine light comes on and stays on. The idle will jump up slightly up and down while I am driving. My machanic replace a vaccum...

Junk yards will have your part, and if that is a problem I have used JB Weld, a 2 part epoxy to do repairs on engines. It is a great inexpensive product that is permanent and will create an air tight seal.

Jan 07, 2011 | 2000 Ford Taurus

1 Answer

Engine light on ,was told to change throtle sensor,changed but light still on also sounds as if vaccum leak

Scan for codes again and see what the code is. Now. with regards to a vacuum leak, there is a propane kit with a metered hose you can use to probe around the engine with to check for vacuum leaks. Basically where the hose is at the time of the rpm rise is where the vacuum leak.

Mar 14, 2010 | 2002 Jeep Liberty

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I have a code that i need to get the right part..PO174

po 174 is typically accompanied by code po 171 however the code is normally a vaccum leak fords normally have an issue with the pcv valve hose collapsing a busting or either the plastic intakes have a vaccum leak that clears up when the engine warms up which is normally the upper plenum gaskets

Oct 19, 2009 | 1999 Ford Windstar

1 Answer

Service engine light stays on code p0440 comes up have replaced gas cap light came back on where are the sensers loacted as well as the evaporative emission canister as well a diagram for hose routing

Evap cannister is located next gas tank . Sounds like vaccum leak problem with engine running open hood and listen for hissing noise in vaccum lines also crawl uder vehicle near gas tank and listen most of the time leak can be located like this.

Aug 02, 2009 | 2000 Chevrolet Blazer

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Transmission problem

the vacuum modulator that the vacuum hose connectes to at the transmission has a ruptured rubber diaphram, replace the vacuum modulator and the vacuum hose.

Jul 01, 2009 | 1992 Ford Explorer

1 Answer

Service Engine and Service Vehicle lights

You can generally find a vaccum leak by pressure testing the system. Most auto parts stores sell a vaccum tester relatively cheap. Or you can take it to a shop and they will pump your sytem full of a uv sensitive die and then use a black light to find the leak. If it says vaccum leak at engine on the vent solenoid then all you need is the schematic of your vaccum system to find the solenoid and you should find your leak theoretically.

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1 Answer

Check engine light.

you have a vaccum leak.check for cracked hoses

Jul 22, 2008 | 2002 Ford Explorer Sport Trac

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