Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: lplate on December 04, 2011, 02:30:09 PM

Title: Stalling on my Grand cherokee v8
Post by: lplate on December 04, 2011, 02:30:09 PM
Hi all looking for some help!!!!!
I have a grd cherokee overland 4.7 v8 on a 2002 model with lpg conversion.
a few months back when i returned from trip in euro my engine light came on my dash. It did not cause me any problems as car continued working well so i carriele d on using it> However i have noticed that a small problem with stalling has now developed and has become more consistent.
In the morning she will start and run a little lumpy when cold almost like too much fuel and about to flood but she will not idle and just stall> as she gets warmer its better but she will still stall if i come to a stop but if car keeps mooving at about 20 mls an hour its ok> also noticed that at first when i start her up ,it just stinks of fuel but this does go away very soon after. Any ideas why the stalling??? or anyone with similar problem???
Title: Re: Stalling on my Grand cherokee v8
Post by: Panic mechanic! on December 04, 2011, 02:36:21 PM
it sounds like your lambda sensors are playing up or knackered, you need to  see if you can pull off any engine error codes using a scan tool or  the display/ignition  trick.
Title: Re: Stalling on my Grand cherokee v8
Post by: lplate on December 04, 2011, 02:51:39 PM
cheers give that a go also nitced that when idling on the rare ocasion wehn it does its also very low about 4000 rves it also surges up and down at times > is this common on these cars?
Title: Re: Stalling on my Grand cherokee v8
Post by: jay140285 on December 04, 2011, 02:56:13 PM
Possible throttle position sensor as well if its got erratic idle. Had that on mine and it would also stall when the sensor was playing up.
Title: Re: Stalling on my Grand cherokee v8
Post by: Bishops Finger on December 04, 2011, 03:09:41 PM
Remove the LPG set up and throw it over a hedge?
Title: Re: Stalling on my Grand cherokee v8
Post by: Panic mechanic! on December 04, 2011, 03:54:41 PM
why are you standing behind the hedge so it can knock some sense into you? :017: :hysterical:
Title: Re: Stalling on my Grand cherokee v8
Post by: Bishops Finger on December 04, 2011, 04:28:27 PM
Don't do LPG...even over the head :hysterical:
Title: Re: Stalling on my Grand cherokee v8
Post by: daggie on December 04, 2011, 04:58:12 PM
had this on mine,
tried a tps din't work
 upstream oxygen sensor cured mine
however, mine only has two 02 sensors, 1 before and one after
this was on petrol as well
Title: Re: Stalling on my Grand cherokee v8
Post by: scrw on December 04, 2011, 05:05:45 PM
Don't do LPG...even over the head :hysterical:

from a f*&kwit with too much money who has never owned an LPG car but likes funding BP dividens  :icon_rolleyes:
Title: Re: Stalling on my Grand cherokee v8
Post by: Bishops Finger on December 04, 2011, 09:43:03 PM
Don't do LPG...even over the head :hysterical:

from a f*&kwit with too much money who has never owned an LPG car but likes funding BP dividens  :icon_rolleyes:

Fook off mon.Ima  a Rockhoppa beitch..... :wave-fingersmiely: :wave-fingersmiely: :wave-fingersmiely: :wave-fingersmiely: :wave-fingersmiely:Oh and there is was space in the boot of my grands..