Skip the auto shop - Our mechanics make house calls

Q: The truck is riding hard

asked by on

The computer told me that it was code P0011 I fixed that code put a new timing change on the truck everything the computer told me with code P0011 I fix now the computer telling me code P0443 which is the EVAP 1 and that code will not go away and I replaced EVAP 1 and the end which is EVAP 2 to make thing even better and still can't fixed that code so my guess is I have to change the gas cap and the ECU and I'm sorry if I'm sending this to meany time I just want this fix that's all

When you say the truck is riding hard, I have seen many of the suspension struts binding causing a hard ride. They do not shift to smooth ride and may stay stiff. Replacing the shock/struts fixed the issue with ride. For code P0443, there is a tip to check the wire harness near the front drive shaft and transfer case for harness rubbing through the harness. The code P0449 and P0443 should both be looked at for a fix for P0443. The canister vent solenoid wiring is the most common cause. The harness is damaged or the connections at the ECM needs dielectric lube. If you would like help getting this diagnosed, a certified technician from YourMechanic can come to your car’s location to inspect each Check Engine code thoroughly and pinpoint the exact faults that are occurring.

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: Front tire leaning.

When the top of the tire leans in more than normal this is usually caused by some sort of failure in either the upper ball joint upper control arm or control arm bushings. Sometimes nothing has failed at all, upper...

Q: How do I know if my brakes have spread fingers or not when I replace the calipers, rotors and pads?

Hi there. The best way to ensure you purchase the right parts is to first contact a Cadillac dealership parts department for an estimate. By giving them your VIN number, they'll be able to research this and provide you with...

Q: P0443

Hi there. A P0443 code will set when the evaporative emission system performs a self test and activates the purge valve to use engine vacuum to pull a vacuum on the tank for leak testing. When the engine computer does...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.