Skip the auto shop - Our mechanics make house calls

Q: jerking when you get up past 45mph and is shutting off

asked by on

I have a 1997 jeep Cherokee that jerks when you get up past 45mph and just started shutting off while driving. I have tried a new crank sensor and am still having problems.
My car has an automatic transmission.

A: Hello. If the engine is misfiring and shutt...

Hello. If the engine is misfiring and shutting off at this speed, then that can be caused by a number of issues. Most of the time, this is caused by a failing distributor. These are a common problems on this vehicle. I would check the inside of it for oil filter as an internal oil leak can also cause this. Either way, the distributor would need to be replaced.

If that is fine, then it may have an issue with the fuel pump or even the main relay. I have seen these fail and turn the power off to the ignition system at certain speeds. If you are planning on having this fixed, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose the jerking problem and advise you on the appropriate repairs.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Engine suddenly shut off, did not start right up - 1970 Jeep CJ5

The basics need to be checked. Both the fuel delivery to the carburetor and the ignition system should be looked at. Fuel supply to the carburetor including a volume measurement needs to be checked. In the ignition system, spark at...

Q: Engine chugging at low speeds when the weather is bad

It is very possible that moisture is getting into the connectors of the engine control module. The connectors should be checked and cleaned if necessary. Di-electric grease can be used to help seal the connectors and keep the moisture out....

Q: Car starts bucking/jerking when letting off gas on the highway

This is very likely a throttle issue. There is an idle control module (or similar setup depending on your make and model) that is located on the throttle body which helps the gas regulation during these moments. Otherwise, without a...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.