What is the name ...?
Senior Member
Joined: Jul 2011
Posts: 560
Likes: 26
From: West Covina, Ca.
Year: 1988
Model: Cherokee
Engine: 4.0
Note from DJ
Your Profile states that you have a 2001 Cherokee. 4.0 with Auto Trans.
I have never seen anything like that on a 2001 Jeep.
So what car are you working on?
Your Profile states that you have a 2001 Cherokee. 4.0 with Auto Trans.
I have never seen anything like that on a 2001 Jeep.
So what car are you working on?
Caracticus Potts The Mod
Joined: Jul 2009
Posts: 5,298
Likes: 9
From: Hainsville, NJ
Model: Grand Cherokee
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Thread Starter
Senior Member
Joined: Apr 2008
Posts: 974
Likes: 1
From: Oman
Year: 2001
Engine: 4.0
CF Veteran
Joined: Dec 2015
Posts: 3,038
Likes: 338
From: PA
Year: 1997
Model: Cherokee
Engine: 4.0L
Is the CEL on? If so, check the gas cap. Sometimes its that simple. Sometimes not.
Other possibilities could be leaking fuel injectors, broken vacuum lines to/from the Leak Detection Pump, the EVAP canister underneath the vehicle, pinhole in a fuel line, leaking o-ring around the fuel pump, fuel filler, or running extremely rich. Check all of that. Get in close and use your nose to see where it seems strongest.
Other possibilities could be leaking fuel injectors, broken vacuum lines to/from the Leak Detection Pump, the EVAP canister underneath the vehicle, pinhole in a fuel line, leaking o-ring around the fuel pump, fuel filler, or running extremely rich. Check all of that. Get in close and use your nose to see where it seems strongest.
Last edited by fb97xj1; Aug 7, 2017 at 11:11 AM.
Thread Starter
Senior Member
Joined: Apr 2008
Posts: 974
Likes: 1
From: Oman
Year: 2001
Engine: 4.0
Is the CEL on? If so, check the gas cap. Sometimes its that simple. Sometimes not.
Other possibilities could be leaking fuel injectors, broken vacuum lines to/from the Leak Detection Pump, the EVAP canister underneath the vehicle, pinhole in a fuel line, leaking o-ring around the fuel pump, fuel filler, or running extremely rich. Check all of that. Get in close and use your nose to see where it seems strongest.
Other possibilities could be leaking fuel injectors, broken vacuum lines to/from the Leak Detection Pump, the EVAP canister underneath the vehicle, pinhole in a fuel line, leaking o-ring around the fuel pump, fuel filler, or running extremely rich. Check all of that. Get in close and use your nose to see where it seems strongest.
Last edited by Arab1970; Aug 7, 2017 at 12:52 PM.
CF Veteran
Joined: Aug 2009
Posts: 5,676
Likes: 301
From: WV
Year: '96
Model: Cherokee
You need someone to scan your OBD II (on board diagnostic) system to see what code/codes caused your CEL to come on. Don't want to be spending money on parts you may not need.
CF Veteran
Joined: Oct 2013
Posts: 2,097
Likes: 12
From: Tarpon Springs, FL / Denver, CO
Year: '98
Engine: 4.0 I6
It would be a good first step to have them use an OBD II scanner to check the code and see what it says (or consider purchasing a cheap Bluetooth OBD II scan tool, they are around $25 USD online. Very handy to check your own codes)
Have you checked the fuel rail to see if any of the injector o-rings are leaking onto the intake manifold? Or maybe the fuel line/fitting that connects to the fuel rail??
Where is the smell of gas coming from, if you can narrow it down? Under the hood, under the car, near the gas tank in the rear?
Have you checked the fuel rail to see if any of the injector o-rings are leaking onto the intake manifold? Or maybe the fuel line/fitting that connects to the fuel rail??
Where is the smell of gas coming from, if you can narrow it down? Under the hood, under the car, near the gas tank in the rear?