Vibration and low grumble when engaging D or R - 3.0 CRD - Jeep Garage - Jeep Forum

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Old 10-03-2016, 06:52 AM
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Vibration when in R (under load/ up incline) - 3.0 CRD

Hi all,

I was out ferrying people around the other night. It was hammering down with rain and there were some massive puddles

The engine was warm, we stopped for a couple of hours and when I came to reverse out of the car park (the outside temp was around 9degrees C), there was an awful lot of vibration - similar to starting off in too high a gear) and a gruffness from the engine. At first I thought it might be the pads sticking a bit but having dismissed that idea I was careful to listen for it again the next time I started and drove off.

It did it again in the AM. Seems worse in reverse but then disappears after the engine has been running a couple of minutes.

Performance is good, no lights on. Just had an oil change and air/oil filter change.

Any ideas?

Cheers

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Old 10-03-2016, 12:45 PM
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Re: Vibration and low grumble when engaging D or R - 3.0 CRD

update on problem ****

it seems the issue comes about when reversing, even when warm.

If i am on a slight incline (facing down) and select reverse, there is the normal revving noise but also a gruff note and vibration that seems to come from underneath the car. Again, think of the engine vibrating when it has too low a gear and you put your foot down. Its a bit like that but a little 'higher' in pitch.

Any ideas welcome.
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Old 10-03-2016, 01:00 PM
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Re: Vibration and low grumble when engaging D or R - 3.0 CRD

A member posted a similar problem in the rain a couple of days ago. It was a heat shield. Wouldn't hurt to check.
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Old 10-03-2016, 03:11 PM
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Re: Vibration and low grumble when engaging D or R - 3.0 CRD

I'll take a look and see what I can find
Cheers.
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Old 10-04-2016, 05:43 AM
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Re: Vibration and low grumble when engaging D or R - 3.0 CRD

Quote:
Originally Posted by Governor View Post
A member posted a similar problem in the rain a couple of days ago. It was a heat shield. Wouldn't hurt to check.
I got underneath and had a good poke about. All the shielding seemed to be ok and and pan or protection reasonably solid. I manipulated some shielding to see if it was a similar noise and whilst it was, the vibration wasn't as much.

I can feel the vibration coming up through the driver's seat.
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