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What could cause the air flow to change from panel to floor to completely shutting off although the fan is running on a 97 F250 when it is put into a pulling situation?
Loss of vacuum or vacuum leak--when engine is under load vacuum is decreased--normally you have a storage tank to compensate for this loss-however if there is a leak or engine vacuum is not sufficient the result you are seeing is normal . So check for leak either under hood or dash
When running the AC what would cause the temp to go from cold to hot and the air flow to go from vent to defog for no reason?
A vacuum leak in the vacuum supply line from the engine can do that. Many vehicles use engine vacuum to operate the HVAC system. If there is a loss of vacuum to the system it will default to defrost.
Why would the air conditioner blower on my 2001 Ford Expedition switch to defrost as I accelerate to 1800rpm?
Loss of vacuum due to leak or bad vacuum caninster. Defrost is the default on this system and when vacuum drops it goes into default mode Check for leak either under hood or under dash area
What would cause loss of power when accelerating?
Loss of power when accelerating can be caused by a number of things. A leak in the fuel line or even a bad alternator can cause this.
Is water damage a result of casualty loss?
It could be depending on the cause of the water leak.
Would a bad fuel pump cause a loss of gas mileage?
No, a bad fuel pump will cause a no run situation.
At idle my 1989 Chevrolet Camero runs rough and dies what could cause the problem?
If you have a check engine light "on" then you need to have it scanned for codes. It could be numerous reasons such as a vacuum leak, loss of fuel pressure, flooding,and the beat goes on.
When you are driving your Dodge Ram 1500 pickup and press the accelerator to gain speed or pass the heatingAC blower vent closes. As I let off on the gas the vent opens up again.?
Sounds like a vacuum problem - leak When you accelerate vacuum drops - normally there is a storage tank that will compensate for the momentary loss of vacuum. If you have a leak engine is not able to keep vacuum tank filled.
Intermittent loss of brakes in 2002 Saturn L Series?
Check the master cylinder. Occasionally the internal seals wear and intermittently leak. It could also be an indication of a vacuum leak or possibly low engine vacuum. Either way, you'll need to check into it a litle more.
Can you be able to brake with a vacuum leak in the brake booster?
If the vacuum leak is small, then yes the brake booster will still function well enough to assist the braking action. However, if the vacuum leak is very large, or if the brake booster rubber diaphragm is ruptured , then the brake booster will be inoperative and you will NOT have power assist to the brakes. It's wise to just replace the power brake booster with a new unit if there is an internal leak in it, to avoid an accident due to a loss of braking power.
Will a bad catalytic converter cause hard starting?
Yes it will, plus loss of power, & poor mileage.
What is a cause of oil loss in a 2003 Mitsubishi Montero?
Either a leak or depending on how much u drive
