Rough engine idle lights flicker loss of power PT Cruiser...

Q: Rough engine idle lights flicker loss of power PT Cruiser 2007 Turbo

asked by on July 01, 2017

After having the turbo replaced in my PT Cruiser when I got it back the engine idles really rough vibrating the visors even the hood. It does it less when it is in neutral or Park but it is still apparent. The interior and exterior lights flicker or surge with the inconsistent idling not sure if this is related. After spending an ungodly amount of money to replace the turbo took it back to the mechanic because of these issues we both noticed that the engine itself is not vibrating it seems to be coming from the air intake manifold and related parts. They put a new coil in it replace the plugs and wires put some octane boost in which seemed to help a little bit very temporarily they advised me to make sure to use the highest octane which I have with no positive result charged me another $300 yet accomplished nothing

My car has 65000 miles.
My car has an automatic transmission.

It sounds like you may have a weak battery, a failing voltage regulator or failing alternator. As you may know, the alternator charges the battery while the engine runs by generating amperage and recharging the battery while the engine turns the alternator pulley. The voltage regulator is a unit that regulates the charging of the battery by the alternator and maintaining a certain amperage while the engine runs. When the alternator is not working properly, this may result in the battery quickly losing charge and the car losing all power. You may also notice a whining sound as a result of the bearings inside the alternator begin to fail. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your charging system.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

My car won't start and it say immobilizer in my 2007 Volvo S40

You either have an issue with the immobilizer system or a problem with the battery. If the battery is low then there will not be enough voltage available in the car to deactivate the immobilizer system and start the vehicle....

Cranking up

The Check Engine and Oil Pressure Light may flash if the oil pressure switch did not give an oil pressure signal to keep the fuel pump running. I suggest having the vehicle scanned for any codes, then test and replace...

My truck is starting to have a rough idol , I changed the spark plugs about 6 months ago.

The rough idle is often times associated with what is called an idle air control module/valve which regulates the air intake as it is mixed with fuel prior to being injected into the motor. When this is not working properly,...

Related articles

The Best Used Cars to Buy If You’re an Interior Designer
As As an interior designer, you need to transport a great many different items, including fabric, paint and wallpaper samples and sometimes even furniture items. You probably don’t handle overly large loads very often, and when you have to, you’ll...
The Best Used Cars to Buy If You’re a Massage Therapist
If If you're a massage therapist, one of the cornerstones of your business has to be that you don’t keep your clients waiting. That means you need a vehicle that’s reliable. You also will have to move your gear, including...
The Best Used Cars to Buy If You're a Rock Climber
If If you’re a rock climber, you want a vehicle that gets you where you need to go, even if the terrain gets rough. You may be living out of your vehicle at times, so you also want a rig...