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  #1  
Old 02-28-2016, 11:22 AM
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Scary moment

Yesterday we were on our way to lunch diring down an A road thank goodness when the 2005 Jeep Grand Cherokee CRD lost power. I was travelling through a town and had the cruise control set to just over 30mph when suddenly without warning the vehicle started slowing down. I noticed that the Throttle control error light was lit. This was then followed up an error message teling me that the electric brakes needed servicing and at the same time all the instrument lights came on and the engine died. Luckily I was able to pull over as the steering now longer had power.
The Jeep would not start so got onto the breakdown service and arranged for the vehicle to be collected. After about 10 - 15 minutes of waiting I decided to try the the engine again and it started and seem to be running smoothly and okay.
Initially all the lights went out, but after about 30 seconds the Engine management light came on and remained on. I did notice that when starting it again the throttle control error light would remain on for a couple of seconds before going off. I then turned the key, but not to start the vehicle all the lights on the instrument panel went off except the the throttle control error light and the engine mangement light. The moment I turned far enough to start the engine, they both switched off with only the engine management light coming on.
Our concern is if this had happened while in the fast lane on the motorway, we would not have been able to pull over as effectively it is like putting on the brakes without brake lights coming on and could have caused a major accident.
Can any one suggest what is possibly wrong with the vehicle as it has regular servicing and is well maintained? Is it a job that can be done by a local garage or is it preferable to use a garage that has some Jeep knowledge. On trying the vehicle today, it started okay with no warning lights coming on. Thanks for any advice.

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Old 03-07-2016, 08:46 AM
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Re: Scary moment

Collected my WK Jeep Grand Cherokee today. The fault with the vehicle was crankshaft sensor compounded by new battery going faulty. I have been advised of the following faults by the Jeep specialist (not a dealership);

Cylinder 3 & 6 glow plug faults active ( whatever that means as engine seem to be running smoothly)
Front lower ball joints have excess play
Front inner steering arms have play
The nearside wheel bearing has play
Front axle support bush is seperated
Front anti roll bar links are seperated ( I am sure these were replaced about 2 years ago)
Front wishbone bushes are perished
All tyres are beginning to wear low (They are General Grabber HTS with about 28,000 miles)
The propshaft rear boot is split

Obviously I will need to get all of the above repaired although the tyre replacement can wait a few months as still legal. If replacing glow plugs is it advisable to replace all six or is it okay just to replace the two? Not sure what they mean by glow plugs faults active as surely they work or they don't?
Although all are essential if genuine I will need to get the most urgent ones done first. Can anyone advise the best order to have things done as not exactly flush with the ready cash. Thanks.
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Old 03-07-2016, 09:18 AM
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Re: Scary moment

Seems that your jeep didn´t see preventive maintenance for some time, seeing the list of items.
The glow plugs are used during starting and maybe during the warmup, but for the rest they are not needed for the operation of the engine. If the engine still starts without problems, i would leave those plugs for later.
Play in steering and/or suspension parts can have dangerous effects on the stability of the jeep. This normally you only will find out during more extreem situations in the beginning, which makes it all even worse. So i would put those in the first place.
The prop shaft CV joint boot (its the one on the T-case?) depends on how the joint is. If the boot rupture is recent and still some grease is inside the joint (and not much dirt), you could just change the boot, but should do that as soon as possible, to prevent premature wear of the joint due to lack of grease and the presence of sand/dust in the joint. If it is completely dry and dirt present or play on the joint, then it will be better to replace the whole joint with boot.
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Old 03-07-2016, 09:40 AM
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Re: Scary moment

Quote:
Originally Posted by Frango100 View Post
Seems that your jeep didn´t see preventive maintenance for some time, seeing the list of items.
The glow plugs are used during starting and maybe during the warmup, but for the rest they are not needed for the operation of the engine. If the engine still starts without problems, i would leave those plugs for later.
Play in steering and/or suspension parts can have dangerous effects on the stability of the jeep. This normally you only will find out during more extreem situations in the beginning, which makes it all even worse. So i would put those in the first place.
The prop shaft CV joint boot (its the one on the T-case?) depends on how the joint is. If the boot rupture is recent and still some grease is inside the joint (and not much dirt), you could just change the boot, but should do that as soon as possible, to prevent premature wear of the joint due to lack of grease and the presence of sand/dust in the joint. If it is completely dry and dirt present or play on the joint, then it will be better to replace the whole joint with boot.
Thanks. The Jeep has been regularly serviced and maintained so we were quite surprised when the list of issues came up. The Jeep drives fine and I the steering feels okay so maybe they are just trying to con us although there may be one or tow issues.
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