Skip the auto shop - Our mechanics make house calls

Q: Truck has a wrench light and won't clean exhaust filter

asked by on

I changed the oil, oil filter, and both fuel filters. after I finished I drove the truck about 30mins and the truck tried to clean the exhaust filter. that light stayed on for 5 seconds then the wrench light came on and stays on. I went home and hooked up the code reader and it didn't give any codes. I started driving again and the same thing happened again. how do I get the wrench light to go away? did I screw up putting the fuel filters in?

My car has 100000 miles.
My car has an automatic transmission.

A: Hello. If the wrench light is coming on, th...

Hello. If the wrench light is coming on, then there is an issue that the computer is seeing. Some generic scan tools cannot read the correct codes in the computer. I use a Ford scan tool on this. It sounds like it may from a fuel pressure issue from the fuel filter change, or it may be something different. If it is the exhaust filter then it may need to be replaced or baked to clean it. If you need to have this engine light issue resolved, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose the warning light and have it repaired accordingly.

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: 2004 Ford Falcon XR6 automatic (BA) makes increasingly loud noise when accelerating except when turning left.

Hi there. The first step in identifying the cause of a noise involves pinpointing its location. If the noise is coming from either side of the vehicle, it's possibly due to a faulty wheel bearing. If the noise comes from...

Q: p0303 misfire and p0269 balance fault

Hello, From my experience this means that the fuel injector for cylinder #3 is faulty,has dirt in it,damaged wiring,a loose connection or corrosion in the connector. It sounds like the moisture from the car wash is effecting the fuel injector...

Q: Replaced 5r110 transmission in 2004 f350 6.0 4x4, hard shifts or slipping transmission. Also doesn't always engage reverse.

If this is a new or rebuilt transmission, and external controls (throttle position sensor, solenoids, TCM, harness, etc.) have ALL been diagnosed and tested, the transmission is likely defective and should just simply be returned to the vendor, again though...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...