1993 Cherokee Misfire, advice?
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1993 Cherokee Misfire, advice?
I recently bought a 1993 Cherokee to fix up and have some fun with. I knew it had some problems, didn't mind, engine and most other areas looked good. It ran, 4X4 worked. It had a shake at 45 MPH so I had it towed to a shop I trust. They told me it has a misfire somewhere, we will know exactly tomorrow (they got to it kind of late in the workday). I realize this covers a wide range of issues, but what I was wondering was what is the most common cause? Most common repair shop cost (including labor) for whatever the different causes are? Like I said, we knew it had issues and we had some money set aside to fix it. I am just worried it will be too much... It has 203k miles and the "high output" 4.0.
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Year: 1996
Model: Cherokee
Engine: 4.0 HO
I had a 91 xj that had horrible problems with misfires. I pulled the codes and it was just a map sensor. You 100% absolutely positively have to get an oem replacement from the dealership or Napa, at least my local Napa, had an oem map for $60.
If you just need a map sensor it will cost the price of the New sensor and 5 minutes to swap it out.
If you just need a map sensor it will cost the price of the New sensor and 5 minutes to swap it out.
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Well, I have around $900 to pay for repairs. I don't have the tool or ability (currently) to fix anything myself, that is why I need to pay a shop to do all the repairs. I am just worried about cost... Is there a ballpark estimate for what a shop would charge, what I can expect, for whatever the different issues could be? Also, the Jeep isn't smoking at all.
Last edited by DTACBLF; 02-05-2013 at 06:13 PM.
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Year: 1990 Laredo
Model: Cherokee
Engine: 4.0 Inline 6 Renix
What do you mean by shaking? Like the jeep will not go past 45 mph or the engine was choking and guesting at 45 mph...?
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Like... really strong vibrations, borderline going over a washboard. Starts at 45 end at 50 - 55ish. I thought it was the death wobble thing, my mechanic said it was a misfire. Just to rehash - 203k miles, 4.0, no smoke of any kind... Oh and yes, it will go past 45.
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Year: 1990 Laredo
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Engine: 4.0 Inline 6 Renix
a misfire usually doesn't happen at a certain mph then go away.. it would happen at a certain rpm usually or load...
if it has to do with speed... it could be bad tires or out of balance ,a bent rim... u-joints... suspension parts etc...
but when i first get a jeep it is good to get a good tune and change all the fluids...
if it has to do with speed... it could be bad tires or out of balance ,a bent rim... u-joints... suspension parts etc...
but when i first get a jeep it is good to get a good tune and change all the fluids...
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#8
Well, I have around $900 to pay for repairs. I don't have the tool or ability (currently) to fix anything myself, that is why I need to pay a shop to do all the repairs. I am just worried about cost... Is there a ballpark estimate for what a shop would charge, what I can expect, for whatever the different issues could be? Also, the Jeep isn't smoking at all.
I know it's not what your post is about but that's my advice for ya
#9
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I just don't understand why the mechanic would say it is a misfire. I mean yeah, seems more like a death wobble to me... I read somewhere of people having a misfire that caused a problem just like this though.
You should be happy to know, I am going to school to be a mechanic. Just in the super early phases of that!
You should be happy to know, I am going to school to be a mechanic. Just in the super early phases of that!
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