Q: 2003 Jeep Liberty check engine light power all time smell and white smoke

asked by on

My Jeep has the check engine light on and power is on all the time there's no way of turning it off until battery goes dead in a week or two. I can even drive it while I take out the key from the cylinder lock! Now It's been a week with a horrible smell and bit of white smoke. I took it to different mechanics, some say is the ignition switch pin and ignition starter, that it has electrical problems and it's confusing all the system. But funny part is when they put it under the computer and test it everything looks fine. They don't see any leaks either. After all tests they say "everything is fine" which is controversial.

My car has 171000 miles.
My car has an automatic transmission.

Hi Vanesa. Thanks for writing in tonight about this very odd issue with the Jeep. Generally speaking, when you have constant power being drawn (even if the key is out of the ignition) it’s caused by an electrical circuit that is stuck open or what’s referred to as a parasitic drain. Whether the source of this is the ignition cylinder, an exposed wire (creating a short), or a damaged or faulty ground wire connection, it’s very difficult to isolate and pinpoint the source of this problem without completing an electrical problems inspection. Electrical problems can and often will send false data to the ECU (which will illuminate the light). That smoke and smell is what concerns me, as that is always an indication that something is burning and should be isolated and diagnosed as soon as possible.

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
  1. Home
  2. Questions
  3. 2003 Jeep Liberty check engine light power all time smell and white smoke

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: jeep not starting

There are multiple things that could be causing your Jeep to not start. You should start by checking for spark, performing a fuel pressure check, followed by a compression check. This will tell you which item you are missing to...

Q: Wondering

The wheel bearings on the front of your car are contained within bolt on, unitized "hub/bearing" assemblies. There is an assembly for the left side and one for the right so two altogether. The rear of your vehicle does NOT...

Q: Q: Rear drum brakes

Hello, thanks for writing in about your 2003 Hyundai Elantra. The price sounds correct for the work you said was done. You are looking at about two hours labor plus parts, shop supplies, and taxes.

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...
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...
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...