Skip the auto shop - Our mechanics make house calls

Q: Engine light on

asked by on

Check engine light has been on. Took it to a neighborhood mechanic. He put the computer on it and the code came up as a bad O2 sensor. He told me he needed to change the O2 sensor. There was also a terrible squeaking in the back of my vehicle on the inside. It sounded like something was rubbing or jammed up against something in the back of the truck. After the mechanic drove with me for a short time he told me he was pretty sure I needed shocks. I dropped the car off and he change the O2 sensor and check the shocks telling me they were bad and he replace the shocks in the rear of my Escape. When I went to pick up the car he told me that the squeaking did not go away and it was still the same. It is the next day and I have a car that sounds identical to before when I brought it in and my check engine light is still on. He wants the car back today to take another look at it. I am upset that he told me this would be an easy fix and nothing seems to have gotten fixed. Please advise. Thank

My car has 86000 miles.
My car has an automatic transmission.

A: The rear and front sub frame locating holes...

The rear and front sub frame locating holes and alignment pins are contacting each other underneath on the front or rear sub-frames causing the creaking noise you are hearing. The sub-frames will need to be loosened up on a vehicle lift and moved so the pins do not contact the body and the bolts tightened back up. This will take care of the creaking noise.

As far as the O2 sensor problem, I would need more information about the code you are getting. If you notice any sort of exhaust leaking in the engine, then you may have a leaking manifold gasket that can cause a false O2 sensor code onto the leaking manifold. If you still need assistance, then have a professional mechanic come and diagnose the Check Engine Light. They will be able to go beyond just looking at the code, and can thoroughly look at your vehicle to see what repairs should be done.

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: Why don't my starter come out after I took both screws off with the wire and both bolts top and bottom

The reason the starter will not come out after you removed the two bolts is because you have three bolts that hold the starter in. There are two on the top close together and one near bottom.

Q: Knocking sound when the car is moving, but not accelerating or braking.

Hi there. Check the lug nuts on the front wheels and make sure that they are tight. The wheel could be loose and moving around. If the lug nuts are tight, then check around the wheel and see if there...

Q: I have a 2000 infinity I30 that is possibly leaking trans fluid. The dip stick is completely dry but I put fluids in it about 4 da

Hi there. Absolutely do NOT put a stop leak product like Blue Devil or anything else to fix your transmission leak. These products are designed to plug leaks in gaskets or seals. However, the transmission depends on smooth flow of...

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...
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...