Skip the auto shop - Our mechanics make house calls

Q: Stalling and surging

asked by on

Hello, I have a 92 Jeep Cherokee Laredo, I recently have put a used engine inside that has about 70,000 miles on it and been having a problem with the whole vehicle randomly stalling when Accelerating or braking or idling, also it surges randomly. Another problem I have found is that sometimes it doesn't want to take any gas while driving on the highway and I hear a almost clicking sound. I recently replaced the fuel regulator, fuel filter, fuel pump, water pump and dont know if it may be the Mass Airflow Sensor or what. I need some advice on what may fix the problem.

My car has 256000 miles.
My car has an automatic transmission.

A: Hi and thank you for contacting YourMechani...

Hi and thank you for contacting YourMechanic. The best thing to do is to hook a scanner to your vehicle and retrieve any codes if possible. Yes, there is a very good possibility that your MAP sensor is faulty. The MAP sensor regulates fuel to air mixture and will affect the engine performance. If the MAP sensor tests good, there is a possibility that your ECM is going out and will need to be replaced. If you would like to have this addressed, a professional from YourMechanic can come to your car’s location to diagnose the stalling problem and assist with repair.

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

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: car runs great when engine is cold but dies when engine is warm

This sounds like there is a problem with the MAF (mass airflow) sensor. When your vehicle is cold, the PCM (Powertrain Control Module) is in what is known as open loop. Open loop is a preprogrammed program put in place...

Q: Replaced fuel pump. Car won't start. 2002 Infinity I35

Hi there - the metal component you describe is a fuel check valve on the fuel return line. Its function is to maintain a small amount of pressure in the fuel system so that starting does not require the fuel...

Q: What's the best way to get bolts off of the water pump pulley

I will usually try to break the bolts free from the pulley before I remove the belt. Sometimes you can put a little extra tension on the belt by pressing on the tensioner, while using another wrench to break the...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
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...