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What else would cause high engine idle on a 1993 mercury topaz after air idle control valve has been replaced and there are no vacuum leaks?
remove the air-intake hose spray some carburator cleaner into carb, the flap is gummed up, start the engine if it stalls you know you need to spray more into the neck, once it can idle at a low speed without you moveing the trottle to keep the engine running, then you know you have a clean trottle, do this while the engines running, make shure you put a rag under the neck so that the cleaner run off wont go onto the hot engine,
What else can I help you with?
Where can I find a free vacuum diagram for a 1977 Mercury Marquis?
Which vacuum diagram The Underhood for the engine or the vacuum for the interior /AC system?
How do you replace the heater core on a 1983 Mercury Grand Marquis?
Sorry but you must remove the entire dash. The car was built around it, or so it would seem. Be very careful to reconnect the vacuum lines when you reassemble and draw a vacuum (suck on the lines)to make sure that each vacuum diaphragm is working and functional. It will save you a lot of work and time if one of these needs to be replaced along with the heatercore. These vacuum chambers control the doors that direct the air to the defrosters, cabin and floor. If any of these do not work or have a vacuum leak then your engine will have a vacuum leak. Your engine does not run well with a vacuum leak.
What vacuum line will make both banks on my 2003 mercury sable 3.8 duratec engine run lean?
Any vacuum line connected to the plenum.
What is the diesel vehicle have a vacuum pump?
Because a diesel engine does not create vacuum and the vacuum pump is necessary to operate things like the vacuum assist brakes and cruise control.
Why is there a hissing noise from the heater controls?
Some systems use engine vacuum to move the control doors. You could have a vacuum leak.
When you accelerate in your 1999 mercury mountaineer the vents close what would cause this?
Vacuum leak in a/c door control system . Look for vacuum leak under the hood.
When the heater control is turned to mix or defrost the engine dies 1994 mercury sable?
everything works fine when its on the floor mode also the cooling fan for the engine does not come onI can't offer specifics, but this thought - relationship came to mind:The air directional controls are vacuum operated - and the engine will run real rough and like to stall when there is a vacuum leak.The heater directional vacuum control is on the firewall - somewhere above the gas pedal. Look in this area, both inside the car and in the engine compartment for disconnected/broken hose - and especially anything that is hissing like a mad snake.
Where can you get a vacuum diagram for a 1994 Mercury Cougar 4.6 liter?
You can get a vacuum diagram for a 1994 Mercury Cougar 4.6 liter in the Chilton's manual for that year and model. You can also find the diagram online at All Data DIY and at Engine Guy online.
Does the cruise control on a 2004 Dodge Ram pickup rely on vacuum?
It depends on what engine. The hemi, does not.
Can transmission fluid get into the oil tank of a diesel engine?
Yes, this really can happen. The transmission modulator ruptures and vacuum system system draws out trans fluid into engine oil thru vacuum pump into engine crankcase. Been there, done that. I replaced the modulator valve and dropped engine oil.
When engine is under load your heater ac doors close and your cruse control doesn't work?
Vacuum issue somewhere Vacuum issue somewhere
Can someone find you a vacuum diagram for an 1984 corvette also the cruise control vacuum diagram?
Even a Hayne's manual nowadays includes most vacuum diagrams for emissions control items. They vary, however, from engine to engine and are different for Federal or California emissions systems. In the Related Links section are the diagrams you are looking for.
