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-   -   Grinding Noise (http://www.autobanter.com/showthread.php?t=61003)

Grandetourer March 31st 06 04:39 AM

Grinding Noise
 
While driving straight (no turns), I heard a grinding noise. I was able to
feel the vibration and it felt as if it was coming from between the engine
and the driveshaft. I have a 2000 Jeep Grand Cherokee Laredo. I was traveling
about 40 mph and when I gave it more gas, the grinding noise started. When I
took my foot off the gas, it stopped. I maintained 10 mph and the Jeep would
keep moving. When I pulled into the parking lot and attempted to climb a very
small hill ( like the one when you drive up into a gas station), the Jeep
died on me. I started it right back up and the Jeep is now running fine,
except for the check engine light that is now on. Any ideas?

billy ray March 31st 06 05:20 AM

Grinding Noise
 
Retrieve the fault codes as described:
http://www.wjjeeps.com/faultcodes.htm


"Grandetourer" <u20327@uwe> wrote in message news:5e0eedd502a2e@uwe...
> While driving straight (no turns), I heard a grinding noise. I was able to
> feel the vibration and it felt as if it was coming from between the engine
> and the driveshaft. I have a 2000 Jeep Grand Cherokee Laredo. I was
> traveling
> about 40 mph and when I gave it more gas, the grinding noise started. When
> I
> took my foot off the gas, it stopped. I maintained 10 mph and the Jeep
> would
> keep moving. When I pulled into the parking lot and attempted to climb a
> very
> small hill ( like the one when you drive up into a gas station), the Jeep
> died on me. I started it right back up and the Jeep is now running fine,
> except for the check engine light that is now on. Any ideas?




DougW March 31st 06 01:41 PM

Grinding Noise
 
Grandetourer did pass the time by typing:
> While driving straight (no turns), I heard a grinding noise. I was able to
> feel the vibration and it felt as if it was coming from between the engine
> and the driveshaft. I have a 2000 Jeep Grand Cherokee Laredo. I was traveling
> about 40 mph and when I gave it more gas, the grinding noise started. When I
> took my foot off the gas, it stopped. I maintained 10 mph and the Jeep would
> keep moving. When I pulled into the parking lot and attempted to climb a very
> small hill ( like the one when you drive up into a gas station), the Jeep
> died on me. I started it right back up and the Jeep is now running fine,
> except for the check engine light that is now on. Any ideas?


Could be U joints but I've only experienced on "grinding under load"
and it was a biggie. For me I was towing a trailer through the
mountains and any time I put a load on the engine it would produce
a nasty grinding noise. Problem is your talking "big bucks" if I'm correct. :/

Climb underneath and use a BIG screwdriver or prybar between the oil pan
and the harmonic balancer. (don't bend the pan) lightly pry the balancer
forward and backward, if it moves more than about 1/8" then the grinding is
because the main thrust bearing in the block has gone byebye.

--
DougW



Herb Leong April 1st 06 02:02 PM

Grinding Noise
 
In article <5e0eedd502a2e@uwe>, Grandetourer <u20327@uwe> wrote:
#While driving straight (no turns), I heard a grinding noise. I was able to
#feel the vibration and it felt as if it was coming from between the engine
#and the driveshaft. I have a 2000 Jeep Grand Cherokee Laredo. I was traveling
#about 40 mph and when I gave it more gas, the grinding noise started. When I
#took my foot off the gas, it stopped. I maintained 10 mph and the Jeep would
#keep moving. When I pulled into the parking lot and attempted to climb a very
#small hill ( like the one when you drive up into a gas station), the Jeep
#died on me. I started it right back up and the Jeep is now running fine,
#except for the check engine light that is now on. Any ideas?

Do you have a quadradrive system? If so, what goo do you have in the
xfer case and when was it last changed?

/herb

Grandetourer via CarKB.com April 1st 06 03:42 PM

Grinding Noise
 
No, it is a 2 wheel drive Jeep.

Herb Leong wrote:
>#While driving straight (no turns), I heard a grinding noise. I was able to
>#feel the vibration and it felt as if it was coming from between the engine
>#and the driveshaft. I have a 2000 Jeep Grand Cherokee Laredo. I was traveling
>#about 40 mph and when I gave it more gas, the grinding noise started. When I
>#took my foot off the gas, it stopped. I maintained 10 mph and the Jeep would
>#keep moving. When I pulled into the parking lot and attempted to climb a very
>#small hill ( like the one when you drive up into a gas station), the Jeep
>#died on me. I started it right back up and the Jeep is now running fine,
>#except for the check engine light that is now on. Any ideas?
>
>Do you have a quadradrive system? If so, what goo do you have in the
>xfer case and when was it last changed?
>
>/herb


--
Message posted via CarKB.com
http://www.carkb.com/Uwe/Forums.aspx/jeep-cars/200604/1

Herb Leong April 2nd 06 01:00 PM

Grinding Noise
 
#>#While driving straight (no turns), I heard a grinding noise. I was able to
#>#feel the vibration and it felt as if it was coming from between the engine
#>#and the driveshaft. I have a 2000 Jeep Grand Cherokee Laredo. I was traveling
#>#about 40 mph and when I gave it more gas, the grinding noise started. When I
#>#took my foot off the gas, it stopped. I maintained 10 mph and the Jeep would
#>#keep moving. When I pulled into the parking lot and attempted to climb a very
#>#small hill ( like the one when you drive up into a gas station), the Jeep
#>#died on me. I started it right back up and the Jeep is now running fine,
#>#except for the check engine light that is now on. Any ideas?
#>
#>Do you have a quadradrive system? If so, what goo do you have in the
#>xfer case and when was it last changed?
#>
#No, it is a 2 wheel drive Jeep.

What OBD codes are you getting?
Without cranking, turn the ignition on, off, on, off, on and leave it on.
Have a pen and paper ready to get the codes.

There is a list of the codes and what they mean at www.wjjeeps.com.

/herb

billy ray April 2nd 06 01:53 PM

Grinding Noise
 
Is it still making the grinding noise and vibration?

Retrieve the fault codes as described:
http://www.wjjeeps.com/faultcodes.htm

As you are driving along, in an area with no traffic, put the Transmission
un neutral and see if that has an effect on the noise and vibration.

Repeat test again with the while applying the brakes. When were the brakes
last visually inspected?

Check the power steering fluid level.

Let us know..


"Herb Leong" > wrote in message
t...
>#>#While driving straight (no turns), I heard a grinding noise. I was able
>to
> #>#feel the vibration and it felt as if it was coming from between the
> engine
> #>#and the driveshaft. I have a 2000 Jeep Grand Cherokee Laredo. I was
> traveling
> #>#about 40 mph and when I gave it more gas, the grinding noise started.
> When I
> #>#took my foot off the gas, it stopped. I maintained 10 mph and the Jeep
> would
> #>#keep moving. When I pulled into the parking lot and attempted to climb
> a very
> #>#small hill ( like the one when you drive up into a gas station), the
> Jeep
> #>#died on me. I started it right back up and the Jeep is now running
> fine,
> #>#except for the check engine light that is now on. Any ideas?
> #>
> #>Do you have a quadradrive system? If so, what goo do you have in the
> #>xfer case and when was it last changed?
> #>
> #No, it is a 2 wheel drive Jeep.
>
> What OBD codes are you getting?
> Without cranking, turn the ignition on, off, on, off, on and leave it on.
> Have a pen and paper ready to get the codes.
>
> There is a list of the codes and what they mean at www.wjjeeps.com.
>
> /herb




Grandetourer via CarKB.com April 3rd 06 01:32 AM

Grinding Noise
 
No, it only made noise for that one time. The engine light came on after that.
I paid $40 for a diagnostic. The code came back P0720 - Output shaft speed
sensor.

billy ray wrote:
>Is it still making the grinding noise and vibration?
>
>Retrieve the fault codes as described:
>http://www.wjjeeps.com/faultcodes.htm
>
>As you are driving along, in an area with no traffic, put the Transmission
>un neutral and see if that has an effect on the noise and vibration.
>
>Repeat test again with the while applying the brakes. When were the brakes
>last visually inspected?
>
>Check the power steering fluid level.
>
>Let us know..
>
>>#>#While driving straight (no turns), I heard a grinding noise. I was able
>>to

>[quoted text clipped - 26 lines]
>>
>> /herb


--
Message posted via CarKB.com
http://www.carkb.com/Uwe/Forums.aspx/jeep-cars/200604/1

Grandetourer via CarKB.com April 3rd 06 01:34 AM

Grinding Noise
 
No, it only made noise for that one time. The engine light came on after that.

I paid $40 for a diagnostic. The code came back P0720 - Output shaft speed
sensor.
WOW, you mean I could have saved $40.

Herb Leong wrote:
>#>#While driving straight (no turns), I heard a grinding noise. I was able to
>#>#feel the vibration and it felt as if it was coming from between the engine
>#>#and the driveshaft. I have a 2000 Jeep Grand Cherokee Laredo. I was traveling
>#>#about 40 mph and when I gave it more gas, the grinding noise started. When I
>#>#took my foot off the gas, it stopped. I maintained 10 mph and the Jeep would
>#>#keep moving. When I pulled into the parking lot and attempted to climb a very
>#>#small hill ( like the one when you drive up into a gas station), the Jeep
>#>#died on me. I started it right back up and the Jeep is now running fine,
>#>#except for the check engine light that is now on. Any ideas?
>#>
>#>Do you have a quadradrive system? If so, what goo do you have in the
>#>xfer case and when was it last changed?
>#>
>#No, it is a 2 wheel drive Jeep.
>
>What OBD codes are you getting?
>Without cranking, turn the ignition on, off, on, off, on and leave it on.
>Have a pen and paper ready to get the codes.
>
>There is a list of the codes and what they mean at www.wjjeeps.com.
>
>/herb


--
Message posted via CarKB.com
http://www.carkb.com/Uwe/Forums.aspx/jeep-cars/200604/1

Mike Romain April 3rd 06 02:40 PM

Grinding Noise
 
So what isn't working? Is your speedo or odometer not reading correct?
Any stalls when you decelerate?

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

"Grandetourer via CarKB.com" wrote:
>
> No, it only made noise for that one time. The engine light came on after that.
>
> I paid $40 for a diagnostic. The code came back P0720 - Output shaft speed
> sensor.
> WOW, you mean I could have saved $40.
>
> Herb Leong wrote:
> >#>#While driving straight (no turns), I heard a grinding noise. I was able to
> >#>#feel the vibration and it felt as if it was coming from between the engine
> >#>#and the driveshaft. I have a 2000 Jeep Grand Cherokee Laredo. I was traveling
> >#>#about 40 mph and when I gave it more gas, the grinding noise started. When I
> >#>#took my foot off the gas, it stopped. I maintained 10 mph and the Jeep would
> >#>#keep moving. When I pulled into the parking lot and attempted to climb a very
> >#>#small hill ( like the one when you drive up into a gas station), the Jeep
> >#>#died on me. I started it right back up and the Jeep is now running fine,
> >#>#except for the check engine light that is now on. Any ideas?
> >#>
> >#>Do you have a quadradrive system? If so, what goo do you have in the
> >#>xfer case and when was it last changed?
> >#>
> >#No, it is a 2 wheel drive Jeep.
> >
> >What OBD codes are you getting?
> >Without cranking, turn the ignition on, off, on, off, on and leave it on.
> >Have a pen and paper ready to get the codes.
> >
> >There is a list of the codes and what they mean at www.wjjeeps.com.
> >
> >/herb

>
> --
> Message posted via CarKB.com
> http://www.carkb.com/Uwe/Forums.aspx/jeep-cars/200604/1



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