Skip the auto shop - Our mechanics make house calls

Q: Car doesn't hold idle, I tried changing the PCV valve, what else could be wrong?

asked by on

After driving fine came home park the car next morning car would not hold idle as if there was no gas. strater ans battery fine.

After disconnecting the IDLE AIR AND THROTTLE POSITION SENSOR I was able to start the car but the car would lazily drive around and I would not be able to accelerate.

I changed my IDLE AIR same symptoms. I changed my THROTTLE POSITION SENSOR same symptoms.

I changes PCV valve (after I found out I might have been driving around without a PCV valve hose for sometime but I'm assuming hose was there when I was able to drive normally.)

So I changed the PCV valve and got a hose for it, plugged the IAC and TPS back in, car was driving amazingly accelerating fast very responsive. parked car for 1 hr. it would not start back to square one.

Has my PCV original Mopar gone bad after a drive? I doubt it.

I am now only able to drive lazily in neutral around 20 miles an hour down with my PCV hose disconnected and throttle position sensor disconnected.

any ideas?

My car has 210000 miles.
My car has an automatic transmission.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Hi the transmission is ranting good fist gear and then when chancing second gear it's going like neutral

Check the transmission fluid first. This is done with the engine warm and idling and the transmission range set to neutral. The specifics of checking your transmission fluid should be detailed on the dipstick or in your owners manual. A...

Q: Problem with fuel system.

Fuel systems are very complex. They include dozens of components such as the pump, filter, lines, regulator, rails and injectors. If you suspect a problem with your fuel system, the best advice is to bring your vehicle to a trained...

Q: Car idling rough and missing.

A misfire will generally cause a rough idle, but you must find out if its one cylinder misfiring or a random misfire, this is were a scan tool is essential. If you can trace the misfire to one cylinder its...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.