zj grand question

[limited97]

hi guys,drove from melbourne to seymour yesterday up the hume with a/c on and temp sat on just over 100c which is normal considering it was 38c outside,got into seymour,stopped at roundabout ,went to take off and she backfired and refused to accelerate,took foot off the loud pedal and coasted through,pulled over let her idle and all is good again?.hasnt done it again today,.
anyone had the same problem or can shed some light as to what could be the problem,dont want to take her to stealership they charge megabucks just to look.

cheers glen

[OzJeeper]

Originally Posted by limited97

hi guys,drove from melbourne to seymour yesterday up the hume with a/c on and temp sat on just over 100c which is normal considering it was 38c outside,got into seymour,stopped at roundabout ,went to take off and she backfired and refused to accelerate,took foot off the loud pedal and coasted through,pulled over let her idle and all is good again?.hasnt done it again today,.
anyone had the same problem or can shed some light as to what could be the problem,dont want to take her to stealership they charge megabucks just to look.

cheers glen

Odometer reading?
Might need a radiator change.

If all is OK again them it's prolly a computer glitch as in a overheated TPS or CPS which came good when it cooled down. Make the problem happen two or three time more b4 you panic...

[scottyzj]

Mine was back firing & playing up in the heat once.
Ended up being a dodgie plug lead.

[limited97]

thanks for your replys guys,ozjeeper its got 202,000 on the clock and serviced by me every 10,000 and the radiator was flushed 6 months ago,you could be right with computer glitch or elec problem as i have the common problem with this model of having to pull the 50amp fuse once a week to get my elec windows to work on the drivers door.
bent,that was my next thought as they are original,if it does it again they will be going in the bin.
thanks guys,will look into it during the week.
cheers glen

[OzJeeper]

Silly as it sounds to cure an engine problem, clue here is the electric windows....

Pull the drivers side door apart and clean the electric consul with CO2 contact cleaner in a spray pack. Dust on the contacts is a known issue...

Had to drive 220km with the drivers side window down (in rain ) )

Back to the engine problems. I would be checking error codes and looking at O2 sensors, TPS and CPS in that order. That is presuming you have done plugs, etc recently...

HTH

[limited97]

update:changed leads,dizzy cap and rotor button on wednesday,all has been good since then,rotor button and dizzy were a little worse for wear.Until today it backfired again on a cool day no a/c after a long trip.Have to bite the bullet she goes to jeep this week and they can figure it out ?
Oh and ozjeeper i did check all codes and nothing came up?
To be continued

cheers glen

[ShadoZJ]

Things to check, Fuel filter(caused same prob in mine) and catalytic converter.