Skip the auto shop - Our mechanics make house calls

Q: Front end shudder, CEL and 4LO lights on

asked by on

I have a problem with my car shuddering all the time at the front end. Also, the dash has been showing the check engine light illuminated along with the 4LO that flashes. What might be the problem? What kind of repairs can I expect?

Hey there. You need to have the AWD system checked to see why the light is 4LO. This can be an internal problem in the transmission transfer case lock up. This transfer case uses an electronic clutch that can shutter if not working properly. Have the scan done to see if a shift sensor or the clutch is slipping.

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: P0139 HO2S-12 (Bank 1 Sensor 2) Circuit Slow Response - 2005 Honda Accord

This code indicates that the rear oxygen sensor is not properly reading the oxygen content and adjusting the air/fuel ratio as it is supposed to. This can be caused the by the sensor not working properly, the wiring to the...

Q: Where do I find the map sensor on my 2006 Cadillac SRX.

Hello, thank you for writing in. On your particular vehicle, the MAP (manifold absolute pressure) sensor is located on the firewall. This is why they refer to it as a "firewall mounted MAP sensor". The firewall is the wall between...

Q: Problems with transmission, stalling

Hey there. You cannot be moving in reverse and try to go into drive or this would confuse the computer and it may default in idle cause the stall. It is not good for the transmission to be moving in...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...