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Old 04-15-2007, 07:58 AM   #1
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Hesitation

I have a 2005 unlimited that has an constant intermitent miss. It misses hot or cold and hesitates bad on acceleration. It shows no codes and the dealer says there is a miss and hesitation but there is nothing he can do since the computer doesnt show a miss.. I have changed the plugs (which looked good) and the air filter. This jeep only has 18000 miles on it. This is the thrid jeep I have owned, i have never been this dissappointed before. Any help would be great! Thanks!

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Old 04-15-2007, 08:11 AM   #2
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Is it missing only under load (in gear), or at all times (i.e sitting at idle or reving the engine i neutral)?

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Old 04-15-2007, 08:50 AM   #3
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Sorry miss-read the post.

You will need to get some real time diag. info. (a scanner and someone who can use it, not just a code puller)

Weak or faulty valve springs could cause it. Vacum leak in some cases, low fuel pressure, faulty or plugged injector, even a partially plugged fuel filter. With the mileage and no codes being thrown I would lean toward that you might gotten a really bad batch of fuel and fouled the lines/injectors or the fuel filter. On the extreme side a cracked head/ head gasket. or even the actual computer may cause it.

Best bet is to get it to a good diagnostic tech, (not always at the dealer). It is difficult to diag. a miss without seeing the vehicle.
I'm sure there are many people here with more ideas though.

Hope it help some.
Good luck
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Old 04-16-2007, 05:38 PM   #4
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Thanks for getting back to me. I agree with everything you say as to possible causes. Still having the bumper to bumper waranty really makes me bashful to seek help elsewhere. I'm cheap. Now it has a new issue. The transmission or transfer case is whining/howling at high speeds. 68 mph and above. Doesnt do it when coasting and the sound is the same in 5th or 6th gear.(So its not an engine issue). Ive been in contact with chrysler...(BTW the guy im working with is great - Bob - he will listen which is very important.) He called my jeep possesed! I wonder if thats a technical term.... Anyways the jeep has an appointment tomorrow....I will let you know!
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Old 04-16-2007, 06:16 PM   #5
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There's no need to seek help elsewhere, if they can't fix it they should replace it. don't accept any less.
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Old 04-17-2007, 07:41 AM   #6
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Skeeter's right, Make the dealer fix what it sold to you. Be very aware of what they do and how they do it. I will tell you a couple of stories to point you in the right direction.

I worked for a dealer (won't mention the brand but one of the big three) in the early 90's. The new body style on the trucks had a small problem with them. Not all but a few of them would loose brakes when turning hard right or left, but all it took was to pump the pedal to get them back. The official fix was to notch the control arm with a torch. The control arm was hitting the brake caliper when in a hard turn. I personally refused and passed the work to someone else because If I had owned a new truck and seen my control arms torched, I would have been very Irate that the truck was not repaired properly with a new style control arm. As far as I know there was not a redesign until the next model year came out.

Another story is about OC's old Mustang, the drivers side window assembly (the part that hold and cranks the window up and down) fell apart. Took it to the dealer, Because it was under warranty, and had them look at it. Instead of replacing the assembly, they replaced the whole thing including the window. The windows on the stang were tinted and when I picked up the car the drivers side was new with no tint. This is minor but if you goto a dealer that has bad techs, bad management, or generally a bad attitude then all they want to do is get you or me out of their hair. This desire to get you to go away can reach a point of giving faulty and unprofessional work. Another point about warranty issues, Most dealers make no money on warranty claims, and most techs only make half wage on them, so the potential is there to blow the customer off.

My point, If you goto the dealer check around with other Jeep owners to see which ones are the best in your area.
Not venting at anyone or attacking anyone here. I just hate dealer attitudes and hope no one here on WF ever goes through what I've seen. (yes I am generalizing, there are a few great "Old School" dealers still around).
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Old 04-17-2007, 07:42 AM   #7
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Remember the lemon laws. My brother In-law had a dodge dakota wich kept going through tranmissions every 3 months. He would take it and they would fix it and it would run fine and then break again. after 3rd time taking it back he mentioned he was thinking about getting a lawyer. They took his truck back and gave him a brand new dodge ram at no cost.I'm not saying this is always the best answer, but if they can't fix the problem it might be something to remember.
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Old 04-17-2007, 11:17 PM   #8
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What they gotta do is
go inside your truck
connect something called the OBD II scanner
Put in the correct chip and configure the scanner to wrangler..
Next they gotta select record event and take it for a spin..
That way they can get some real time data.

I'm not speaking to you like a dummy i'm speaking towards the dealer because i know their kind i've had 3 months of dealer to customer experience and i'm glad my crappy warranty is over.. its preatty obvious they will say oh its perfect if the ECU doesnt throw a code.. If it happends regularly id take it there and insist they take a ride with a scanner recording it. It's warranty and a document is a document. A print out of the data is also more than welcome.
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Old 04-18-2007, 07:19 AM   #9
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Head shaker

Its funny you mention hooking up the scanner. I managed to get a tech to take me for a ride with the OBD hooked up....The thing missed and hesitated as we drove it but nothing showed up on the real time.....Tech just shugged his shoulders and shook his head. So what does this say about OBDII???? HMMM
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Old 04-18-2007, 07:24 AM   #10
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Lemon law

Im very happy with the feed back you guys are giving me! I am talking with the chrysler mothership in michigan (or where ever) and the guy is admitting that my Jeep is possesed. I take that as a good sign that he is receptive to the possible buy back. Have a good one!!!
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Old 04-18-2007, 07:33 AM   #11
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The goodness for the lemon-law. I have never had to use it but it's nice to have it.

Good luck
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Old 04-18-2007, 08:03 PM   #12
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Got the jeep back. Of course they told me nothing was wrong - AGAIN because nothing showed up in the computer. The tech is young so I cant get too angry with him...But we are leaning aginst the jeep with it idleing...YOU CAN FEEL THE MISS!!!! I kept pointing them out! a miss every two or three seconds. I point blank asked him if he felt it. All he would say was...."Well its not the smoothest motor i've felt...but you have to remember its a wrangler." Whats that supposed to mean? The smooth idlers go in other vehicles?

Customer service was closed by the time I got home so Im going to call tomorrow. Lets see what they say
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Old 04-18-2007, 08:11 PM   #13
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Quote:
Originally Posted by kristoph30 View Post
but you have to remember its a wrangler." Whats that supposed to mean? The smooth idlers go in other vehicles?
When i was looking for a Wrangler there was a Sahara that i test drove.. i'm telling you it probably ran on 3-4 cylinder. I go back to the dealer.. i'm like this thing doesnt run right it doenst have any power at all Its hussing, it nearly dies when you step on it and it runs like a little 2 cylinder engine.. the guy is like oh well thats the wrangler it rides rough.. i'm like you people need to test drive that thing instead of just putting it on your lot and saying it's perfect.. the guy again.. thats how a wrangler rides.. You want to know the sticker price on it?

sixteen thousand 995
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Old 04-18-2007, 08:20 PM   #14
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Originally Posted by kristoph30 View Post
Got the jeep back. Of course they told me nothing was wrong - AGAIN because nothing showed up in the computer. The tech is young so I cant get too angry with him...But we are leaning aginst the jeep with it idleing...YOU CAN FEEL THE MISS!!!! I kept pointing them out! a miss every two or three seconds. I point blank asked him if he felt it. All he would say was...."Well its not the smoothest motor i've felt...but you have to remember its a wrangler." Whats that supposed to mean? The smooth idlers go in other vehicles?

Customer service was closed by the time I got home so Im going to call tomorrow. Lets see what they say

When I was trained on diagnostics. We were taught if a problem is stumping you start with an volt ohm meter and a test light and work from that point. Essentially start at the basics and go through the entire engine if needed. Sounds like you had an inexperienced tech that didn't know or have any clue, because of a lack of experience. At this point I would throw the Lemon law at them and see what they do for you whether they send the jeep out to a proper diag. shop or try to wiggle out of a replacement vehicle. Thats just me, I made a dealer so mad once he threw his plates against a brick wall. I don't give scammers a second chance so they get both barrels most of the time.
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Old 04-19-2007, 10:27 AM   #15
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Bad news.

Contacted Jeep this morning. He was very nice but informed me that the dealership cannot fix a problem that they can find. DUH! I just cant believe that when you feel the vehicle vibrate and turn around and say it fine that you can sleep at night. I give up, i dont have the time to fight anymore...I will just trade it in. Thanks for everything guys.
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Old 04-19-2007, 10:33 AM   #16
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Quote:
Originally Posted by kristoph30 View Post
Contacted Jeep this morning. He was very nice but informed me that the dealership cannot fix a problem that they can find. DUH! I just cant believe that when you feel the vehicle vibrate and turn around and say it fine that you can sleep at night. I give up, i dont have the time to fight anymore...I will just trade it in. Thanks for everything guys.
I would either try a different dealer, or start going up the food chain very quickly to get this resolved. See who the service manager answers to either regionally, or start looking for contacts in Detroit to get some answers. If they put you off long enough, you will be out of warranty and then it becomes your, very expensive sounding, problem. Good luck!
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Old 04-19-2007, 02:38 PM   #17
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tradin in

I go out of town for 13 weeks this summer....going to be driving almost 6000 miles on my employers request. I am leaving memorial day so I really dont have time to fiddle around with it. Im going car shopping this weekend and anyone who will give me a good trade in gets my business. Im so stressed out im sick to my stomach and spray painting the toilet bowl. NO vehicle is worth that amount of stress. Thanks again everyone

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