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Gas pump clicks off #4482970
08/08/17 06:19 PM
08/08/17 06:19 PM
Joined: Sep 2009
Posts: 171
USA
zvm77us Offline OP
zvm77us  Offline OP
Joined: Sep 2009
Posts: 171
USA
Hi,
99 cherokee XJ 6cyl 4.0
Lately when I try to fill the cherokee the gas pump shuts off really quickly, today it was clicking off when the tank was only half full.
I do have an evap leak, so all roads I think leads back to the vapor charcoal canister. Am I correct with this notion?
Also, a new canister even aftermarket is quite pricey while on ebay I see used ones for about $32, should I go for new or used?
Thanks

Re: Gas pump clicks off [Re: zvm77us] #4483030
08/08/17 07:32 PM
08/08/17 07:32 PM
Joined: Jun 2017
Posts: 209
NY
DdDd Offline
DdDd  Offline
Joined: Jun 2017
Posts: 209
NY
First is this at all stations? Some are just annoying and click even on my brand new car. I think they're making the units more sensitive.

Second I think your leak is most likely in the lines (dry rot) or the valve that cycles the canister. That's the usual culprit and the part is way cheaper!

https://www.rockauto.com/en/catalog/jeep,1999,cherokee,4.0l+l6,1431776,exhaust+&+emission,vapor+canister+purge+valve+/+solenoid,4936

Enjoy.

PS
if you nailed the canister on a rock offroading the I guess all bets are off for my fix.

Re: Gas pump clicks off [Re: zvm77us] #4483031
08/08/17 07:33 PM
08/08/17 07:33 PM
Joined: Sep 2009
Posts: 16,008
OH
fdcg27 Offline
fdcg27  Offline
Joined: Sep 2009
Posts: 16,008
OH
The evap leak is not your problem in this case. An evap leak should make filling easier, not harder.
Some tanks are just hard to fill and some dispensers are set on max flow. A slower flowing dispenser is always easier to get a true fill with.
If I were going to replace a charcoal canister, I'd spend the money on new, since you'd at least then know what you're getting. In a junkyard one, who knows?
Check RA for the part.


17 Forester 12K MSS 0W-20
12 Accord LX 92K PP 5W-20
09 Forester 95K M1HM 10W-30
01 Focus ZX3 118K PP 5W-20
96 Accord LX 104K T5 10W-30
95 318i
Re: Gas pump clicks off [Re: zvm77us] #4483035
08/08/17 07:38 PM
08/08/17 07:38 PM
Joined: Sep 2009
Posts: 171
USA
zvm77us Offline OP
zvm77us  Offline OP
Joined: Sep 2009
Posts: 171
USA
this issue started last week at 2 different stations, the canister wasn't ever hit on a rock, I only use the Cherokee to commute

Re: Gas pump clicks off [Re: zvm77us] #4483038
08/08/17 07:47 PM
08/08/17 07:47 PM
Joined: Mar 2013
Posts: 911
Florida
laserred96gt Offline
laserred96gt  Offline
Joined: Mar 2013
Posts: 911
Florida
Try disconnecting the tube from the canister and blow it out, maybe spiders or other insects have gotten in there and clogged it.


96 Mustang GT: Castrol Edge 5w50
04 E-150, 4.6, 226K, PU 10W30.
11 Camry 2.5, 60K, Castrol Edge 0W20.
Re: Gas pump clicks off [Re: zvm77us] #4483176
08/08/17 10:34 PM
08/08/17 10:34 PM
Joined: Aug 2011
Posts: 3,157
n.c.
gman2304 Offline
gman2304  Offline
Joined: Aug 2011
Posts: 3,157
n.c.
Mine seems to do that on a hot day. IDK.

Re: Gas pump clicks off [Re: DdDd] #4483187
08/08/17 10:44 PM
08/08/17 10:44 PM
Joined: Nov 2011
Posts: 4,850
MTL, CANADA
Rolla07 Offline
Rolla07  Offline
Joined: Nov 2011
Posts: 4,850
MTL, CANADA
Originally Posted By: DdDd
First is this at all stations? Some are just annoying and click even on my brand new car. I think they're making the units more sensitive.

Second I think your leak is most likely in the lines (dry rot) or the valve that cycles the canister. That's the usual culprit and the part is way cheaper!

https://www.rockauto.com/en/catalog/jeep,1999,cherokee,4.0l+l6,1431776,exhaust+&+emission,vapor+canister+purge+valve+/+solenoid,4936

Enjoy.

PS
if you nailed the canister on a rock offroading the I guess all bets are off for my fix.


+1

Try this fix first. I was pretty sure i had a bad charcoal canister but it ended up being this. Cheapeat fixes followed by expensive if you truly think its even worth bothering...try holding the pump handle upside down in meantime.


2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967

Re: Gas pump clicks off [Re: zvm77us] #4483470
08/09/17 09:18 AM
08/09/17 09:18 AM
Joined: Feb 2007
Posts: 3,642
Southeast
meep Offline
meep  Offline
Joined: Feb 2007
Posts: 3,642
Southeast
canister and leaks have nothing to do with the gas nozzle clicking out. Try a different nozzle position. Try reducing the flow. the evap canister is not related.


2018 F150
2015 crv (wifey!)
Re: Gas pump clicks off [Re: fdcg27] #4483824
08/09/17 03:37 PM
08/09/17 03:37 PM
Joined: Jan 2004
Posts: 4,146
California
nthach Offline
nthach  Offline
Joined: Jan 2004
Posts: 4,146
California
Originally Posted By: fdcg27
The evap leak is not your problem in this case. An evap leak should make filling easier, not harder.

A EVAP leak on the tank side can result in weird fueling behavior - the dispenser nozzle has a small orifice to "sense" if the tank is being filled, no vapor flow to that port shuts off the nozzle. Newer cars with on-board refueling vapor recovery don't move as much vapor to the fill pipe but there's a provision for that - the refueling/rollover valve will channel vapor to the fill pipe.

We had a Nissan Quest that had a vapor line between the fuel tank and vapor line - if that hose was cracked it was impossible to fuel it up.

Last edited by nthach; 08/09/17 03:39 PM.

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