Skip the auto shop - Our mechanics make house calls

Q: My Jeep is having EVAP Issues

asked by on

Hi, I am not able to buy a new vehicle right now, so I'm wondering if you guys could possibly help to replace everything that's wrong with it, starting with the worst part (EVAP) first. I will list all of the issues to help you understand what's going on. I'm getting beyond horrible gas mileage, the evap purge solenoid is clicking, the Jeep feels like it has no power when I step on the gas/very sluggish, it downshifts out of nowhere especially going up hills, it sounds like a motorboat, when I turn it off and take my key out of the ignition it takes awhile before it finally shuts off, the fan is always on, it stalls especially going from reverse to drive (like it has zero power), while putting gas in the gas pump always pops out. I took it to a mechanic who didn't smoke test it and told me I need a new evap canister. There's probably more that I don't remember. Can you please help me? I'm so frustrated!

Thank you, Melissa

My car has 195000 miles.
My car has an automatic transmission.

Hello Melissa, thank you for writing in. We can absolutely help you replace the EVAP canister or other malfunctioning parts in the system. If there is a vacuum leak in the system, you will need to locate it. An EVAP leak will cause the symptoms you are describing, and they will worsen as the condition of the canister leak worsens. Now when it comes to the fuel pump stopping randomly while filling, it too can be attributed to the EVAP system. The pump’s nozzle has a small hole that pulls in air as the tank fills. Once that hole pulls in fuel rather then air, the pump knows the tanks is full, and stops the flow. However, the fumes inside of the tank which are regulated partially by the EVAP system can build up and now allow the fuel to flow down into the tank. When the tank filler neck backs up, the pump stops. For more help resolving the issue, contact our service department to schedule an appointment.

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: Front axle thunks when turning

That does sound like the problem. The u-joints spin with the wheel all the time on your Jeep. Do not delay the repair for too long. If the u-joint fails, it can cause more damage and possibly lock the wheel,...

Q: How do I fix the issues related to code P0445 (Failed Emissions Test)?

Diagnostic Trouble Code P0455 has causes in addition to a faulty or loose gas cap. In your circumstance, the first thing you should do is reset the Check Engine Light which will erase the existing codes. Then see if the...

Q: THe oil pan rusted and is leaking. The mechanic says cost is approx. $750 to replace it. Is that a fair price??

Without knowing what the local labor rate is the prices you got are not out of line with book pricing to do this repair. The oil pan on this engine is mad from a thin metal and rusted from the...

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...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.