'08 CRD trouble after alternator replacement - JeepForum.com
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post #1 of 2 Old Today, 09:56 AM Thread Starter
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'08 CRD trouble after alternator replacement

First time forum poster, looking for some help on my 08 WK Jeep with 160k. I recently moved to a more rural area in the Pacific Northwest USA and I'm having a bear of time finding a competent mechanic for this Jeep. This despite the fact that it sure seems like I live in the area with the highest per capita number of diesel Sprinter vans.

Less than 500 miles ago I had the alternator replaced by a new-to-me mechanic. This after my previous local mechanic screwed up the oil change and dumped oil all over the alternator. You know the story. After calling 6 different mechanics and getting straight up turned down, I find one who says they will work on the Jeep and assures me that they know what they were doing (one of the mechanics that turned me down recommended them). So I tell them to go for it. $800 dollars and two days later and they return the Jeep to me with a new alternator. We drove it only sporadically for the next few weeks, until one morning I go to start it up and I hear this weird high-pitched whine coming from toward the front of the engine after I turn the key to on but before I turn the engine on. It persists after I turn the engine on. I didn't think much of it, but I do recall thinking that is exactly the kind of noise I was hearing shortly before the last alternator died on me.

Anyway, I drive to work that morning, park it outside in the cold. I remote started it in the evening to warm it up (but didn't stick around to see if actually completed warming up) shortly before finishing up my day. When I go out to get in after finishing up my days work, the Jeep is off. I didn't think much of it because I went back to work for ten or fifteen minutes after I remote started it and figured it had just reached the fifteen minute timer on the remote start. I start it normally and drive about 20 minutes to pick up my wife at her work before we drive another half hour home. I turn the engine off waiting to pick her up. She's in the car five minutes later. I go to restart the Jeep and I get the dead battery click. No turnover. Nothing. We try to jump it and it won't start after about five minutes with the jumper cables on. We get a ride home and leave the car at her work until Monday morning. I attempted to restart it again on Monday morning and battery is definitely dead.

I call up the mechanic and tell them I think there's a problem with the new alternator. We get it towed to their shop. They recharge the battery and then start it up and told me they did a charging system check and couldn't find any issues. I tell them to keep digging and I mention that I wasn't sure if it had completed the remote start cycle that last Friday at work. So they try the remote start and find that the Jeep shuts off after less than a minute and is now throwing an DTC for glow plug #3. So they tell me that's the problem, but assure me that they'll check the wiring "for rodent damage." (WTF? You just replaced the alternator and now it's mice?) They don't find any wire damage. So they replace all the glow plugs (which probably did need to be done as I don't know when they were last replaced). And return the Jeep.

Less than 100 miles later were driving it to town for some errands. Check Engine light comes on. Now I'm getting DTC P0197. Which is Engine Oil Temp Sensor low. From what I'm reading online that could be caused by a short somewhere in the electric system. After getting it home I again hear the whine coming from the front of the engine when the key is turned to on but the engine is not running, but which persists after I turn the engine on and after I turn it off again. (I took a video this time and can try to upload to youtube if that helps).

What's going on here? Could it be a bad ground connection for the alternator?

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post #2 of 2 Old Today, 03:09 PM
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2006 WK 
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Location: City of Trees
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Welcome to the forum. There are quite a few CRD folks on the forum that I am sure they can give you some assistance. Just wait a bit and I am sure they'll chime in soon. At least a couple are here in the northwest too.

06 GCO, Dk Khaki, QDII, Flshing Hi 3rd Bk Lt, MDS "ON" Lt, Airtab Vortex Gens, Debadged, Fumoto Drain Valve, BT Catch Can, Chopped EGR Tube, SRT8 CAI, TruFlow Filter, Sonnax Trans Line Press Booster, SC Tuner W/Adv Trans Tune App, DS and HP tuners, Transgo Shift Kit, ARH Long Tube Hdrs w/3 in Magnaflow/Xlerator AP Exh Sys, Bilsteins, SRT Springs/Sways, Cust Eng Cvr, SRT8 frt/rear bumpers, FRI Sidewinder Cam w/6* advance/6.1 valvetrain, SLP 25% UD Pulley, BBK true 90mm T-Body, SOS Ign Coils w/.060 spark plug gaps, TEA ported/milled heads w/new valve seats, SRT Reps with 265/45&295/40X20's.
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