Mud-club

Vehicle & Technical => Jeep => Topic started by: ronttuk on November 27, 2007, 19:26:46

Title: grand cherokee
Post by: ronttuk on November 27, 2007, 19:26:46: my grand somtimes hesitates for a cpl of seconds when its been parked for a cpl of hours or when its cold it only does it once each journey somtimes it pops in the exhaust aswell i just throttle through it then its ok ,,any ideas its just had a new cntr box and lamber sensor fitted
Title: grand cherokee
Post by: Bishops Finger on November 27, 2007, 21:05:29: Have a look at the O2 sensor...
Title: grand cherokee
Post by: ronttuk on November 27, 2007, 22:35:11: how do i check these at home??

or how do i get a fault code??
Title: grand cherokee
Post by: ronttuk on November 28, 2007, 18:56:09: how do i check these at home or get a ecu readout?
Title: grand cherokee
Post by: sardonicus on December 01, 2007, 16:53:06: on a pre '98 grand ,to get the fault code ,turn the ignition on off on off on and any fault code should appear on the milometer. 12 always shows up which is the reset one,ie power was disconected to reset the ecu. haynes manuals list the fault codes.
hope this helps
Title: grand cherokee
Post by: Bishops Finger on December 01, 2007, 18:03:35: FWIW ...think some are listed in the owners manual
Title: grand cherokee
Post by: ronttuk on December 02, 2007, 17:28:20: Quote from: "sardonicus"
on a pre '98 grand ,to get the fault code ,turn the ignition on off on off on and any fault code should appear on the milometer. 12 always shows up which is the reset one,ie power was disconected to reset the ecu. haynes manuals list the fault codes.
hope this helps

that dosent seem to do anything i just get a normal readout
Title: grand cherokee
Post by: sardonicus on December 02, 2007, 23:14:50: Just tried it and it works on my '97 grand.Turn the key from the off position to the first position(steering lock off). From there to the ignition on position and back twice and leave on the third time. took me a few tries the first time. Anyone else ......
Failing this it'l be a trip to somewhere with the right diagnostic tool.
Title: grand cherokee
Post by: ronttuk on December 03, 2007, 13:46:37: ok sussed it i get code 45 o2 sensor wheres the o2 sensor???

is it also know as a lamba sensor???
Title: grand cherokee
Post by: isle of man on December 03, 2007, 17:17:01: yes...but double check you do not have a air leak!!!!

peter henry
Title: grand cherokee
Post by: ronttuk on December 03, 2007, 17:21:04: its just had lamba sensor fitted the day before i got the cherry so ill have a good look around tomorrow thanks guys
Title: grand cherokee
Post by: Bishops Finger on December 03, 2007, 21:13:11: Quote from: "ronttuk"
ok sussed it i get code 45 o2 sensor wheres the o2 sensor???

is it also know as a lamba sensor???

Somewhere on the down pipe of the exhaust..you can see it looking into the engine bay from the passenger side.......NB Jeep dealer will fix code reading....
Title: Re: grand cherokee
Post by: John1uk on January 08, 2008, 09:29:25: Quote from: ronttuk on November 27, 2007, 19:26:46
my grand somtimes hesitates for a cpl of seconds when its been parked for a cpl of hours or when its cold it only does it once each journey somtimes it pops in the exhaust aswell i just throttle through it then its ok ,,any ideas its just had a new cntr box and lamber sensor fitted

it could be due to your fat tumtum :dance: