Skip the auto shop - Our mechanics make house calls

Q: Revving problems

asked by on

New intake manifold outlet cheacked all vacuum lines give it a rev and it stays at 1500rpm for a few seconds then drops back to normal 500-800 rpm

My car has 247000 miles.
My car has a manual transmission.

A: Hi there. This issue is typically caused by...

Hi there. This issue is typically caused by one of two issues. Either the throttle body blades are dirty and are sticking or the idle control valve is damaged and needs to be replaced. Before you purchase new parts, you might want to start with cleaning the throttle body. If this doesn't help, have one of our local mechanics diagnose the idling issues with your 97 Ford so they can pinpoint the exact source of the troubles.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: What could cause my ESP light and ETC light to come on while driving?

The ETC is your electronic throttle control which is usually related to a low voltage problem. Start by having the voltage to the unit checked. The ESP light is the electronic stability light which can also have problems when there...

Q: My car jerks when putting it into drive and sometimes has to be revved up high before going into gear

The issue you're describing is typically an indicator of an internal transmission component failure or loss of hydraulic pressure inside the transmission. The change of the motor and transmission mounts probably did not hurt the Honda's ability to accelerate correctly....

Q: What is making this noise?

Your description of engine knocking at idle with your 2007 Ford F-150 5.4 Triton engine is a common complaint for owners of this engine. I recommend you have a certified mechanic, like one from YourMechanic, do some preliminary checks to...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.