Sputtering When Accelerating - JeepForum.com
 
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post #1 of 5 Old 08-20-2017, 08:59 PM Thread Starter
MilkmanDan
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1996 XJ Cherokee 
 
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Sputtering When Accelerating

I have a 1996 Jeep Cherokee Country 4WD 4.0 and have been having this issue for about a week now. When I give it some gas, it sputters like it isn't getting the fuel. This seems to happen in both lower and higher gears. I went to Autozone, and they got no codes when checking the engine. The check engine light wasn't on until the day after I took it to them. So, I took it to a shop, shelled out $75 for a diagnostic and they claim: it misfires on #2 (runs about 50 instead of 150), needs a new head gasket (valve job), needs a new fuel pump since the sender is not working right, needs a new O2 sensor. Yay!
So I had my friend install a new fuel pump, and it still bucks and sputters. It doesn't stall (thank God) just putt-putts along.
Any ideas on what I should try next? The work that was quoted is not cheap, and I am a starving student at the moment.



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post #2 of 5 Old 08-20-2017, 09:30 PM
mukluk
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When you say #2 runs about 50 instead of 150, are you saying that a compression test was performed and those are the readings for that cylinder?

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post #3 of 5 Old 08-21-2017, 03:21 PM Thread Starter
MilkmanDan
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Yes

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post #4 of 5 Old 08-21-2017, 08:05 PM
mukluk
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Low compression in just the one cylinder points towards either a bad head gasket, broken rings on that piston, or a valve sealing problem on that cylinder... sorry to say, but there' isn't a quick and cheap fix for this. At the very minimum you're going to need to perform a leak down check to see which of the listed issues is the source of your low compression.

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post #5 of 5 Old 08-25-2017, 10:57 PM Thread Starter
MilkmanDan
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Okay, thanks.

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