Trembling and stalling

Tiny
SAVANNAH THOMPSON
  • MEMBER
  • 2002 JEEP GRAND CHEROKEE
  • 4.0L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 151,157 MILES
My vehicle has been trembling and stalling out of no where. Ran the codes this weekend and it said it was the cam shaft sensor. So we changed it. Then today it is misfiring so bad I could barely get home from work. Fluids are all good. I keep an eye on that anyways because I am just paranoid. Lol but anyways, today it said it was misfiring on all six cylinders. A while back it overheated and started sounding like a really quiet diesel but the mechanic could not find anything wrong with it. I am about to change the plugs once it cools down, but does anyone have any ideas?
Wednesday, September 14th, 2016 AT 5:09 PM

12 Replies

Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
What were all of the exact code numbers? Not what someone said they meant.

The Medic
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Wednesday, September 14th, 2016 AT 5:47 PM
Tiny
SAVANNAH THOMPSON
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  • 6 POSTS
Ignore the camshaft, that is an old code that did not get deleted after we changed it.
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Wednesday, September 14th, 2016 AT 5:55 PM
Tiny
CJ MEDEVAC
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What

if

in some Jeepless world, someone "Interpreted" your "P" whatever, whatever, whatever Code sort of wrongly (like camshaft sensor codes might not necessarily mean "change the sensor"

So anyway it was done. Yay! You have a new one!

But the "possible" real meaning of the code may not have been addressed at all.

You still have a problem.

Cannot just rule this "maybe fix" as the real fix.

Code Numbers?

The Medic
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Wednesday, September 14th, 2016 AT 6:33 PM
Tiny
CJ MEDEVAC
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Just saw your picture

Duh!

Was it P0340? Or something else?

The Medic
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Wednesday, September 14th, 2016 AT 6:38 PM
Tiny
SAVANNAH THOMPSON
  • MEMBER
  • 6 POSTS
Yes, that was the code. The sensor was definitely bad though. Should have seen it when we got it out.
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Wednesday, September 14th, 2016 AT 7:20 PM
Tiny
CJ MEDEVAC
  • MECHANIC
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Did the connections look good? Maybe one is not making a good connect to its opposing mate.

Here is what I was talking about with the code.

http://www.obd-codes.com/p0340

See, it is not just change it out in all instances.

Any more/ or the same codes surfacing still?

The Medic
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Wednesday, September 14th, 2016 AT 7:45 PM
Tiny
SAVANNAH THOMPSON
  • MEMBER
  • 6 POSTS
We just replaced the plugs and it is still doing it. They looked bad. The connectors on the cam shaft sensor were burnt. I did not change it out to see the rest, just the old part.
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Wednesday, September 14th, 2016 AT 7:57 PM
Tiny
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Explain this statement?

" I did not change it out to see the rest, just the old part."

May wanna see if an auto parts store has that connector, Might be the whole problem, a bad connection to the sensor.

The Medic
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Thursday, September 15th, 2016 AT 6:11 PM
Tiny
SAVANNAH THOMPSON
  • MEMBER
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I meant I didn't replace the part, just merely saw the old part as I tossed it in the trash. But the Jeep is at the shop now. It was stalling at low idles really bad yesterday so I dropped it off. Ill let you know what they say though.
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Friday, September 16th, 2016 AT 7:29 AM
Tiny
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Eager to hear it!

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Friday, September 16th, 2016 AT 4:08 PM
Tiny
SAVANNAH THOMPSON
  • MEMBER
  • 6 POSTS
Well I changed the crankshaft sensor about 2 months ago. Somehow the bolt was loose and that's all it was. However these daggum things have a problem with their brake lights so now that's my next issue and that I have almost no oil pressure. Yayyy. Not.
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+1
Monday, September 19th, 2016 AT 9:05 AM
Tiny
CJ MEDEVAC
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Here's one from maybe 4 years ago.

Depending on your problem either response I gave might help you.

https://www.2carpros.com/questions/2002-jeep-cherokee-grand-passenger-tail-light-does-come-on-stepping-brakes-works

Oil pressure?

You are keeping oil in the rig?

Sometimes you just might have a bad sender (instead of a worn out engine)

Two avenues to approach this are:

Check the pressure using a mechanical gauge (this will let you know what the actual pressure is, before you buy a sender

or just buy a new sender and install it if it's reasonable (may get lucky)

Many senders for vehicles are $10-$20, not the case for yours

I reckon you have gauge, not an idiot light? If so, see the last part shown in the link (sender for gauge, a switch for a light)

http://shop.advanceautoparts.com/c4/oil+pressure+switch-sender/-49998129?isAllVehicle=false&showTitle=&vehicleIdFromReq=147551&vehicleIdSearch=147551

Your turn!

The Medic
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Monday, September 19th, 2016 AT 4:09 PM

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