New "you know you drive an xj when"
12-23-2011, 01:05 PM
#3391
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Year: 1994
Model: Cherokee
Engine: 4.0L HO
Originally Posted by 89Laredo
WTF?
11:1 compression or what?
11:1 compression or what?
I do however know what my compression test results were thanks to my handy notebook I wrote them down in haha.
Cyl 1 - 144psi
Cyl 2 - 147psi
Cyl 3 - 147psi
Cyl 4 - 147psi
Cyl 5 - 147psi
Cyl 6 - 145psi
Test was done around April and my leak down test (done right after) was also good.
12-23-2011, 01:18 PM
#3392
CF Veteran
Thats within stock specs and there is absolutely no reason you should have to run premium. Maybe its running lean? (higher octane=more resistance to detonation)
Cylinder Compression Pressure
Ratio ............................... 8.7:1
Pressure Range............... 827 to 1,034 kPa (120 to 150 psi)
Max. Variation Between Cylinders ................. 206 kPa (30 psi)
Ratio ............................... 8.7:1
Pressure Range............... 827 to 1,034 kPa (120 to 150 psi)
Max. Variation Between Cylinders ................. 206 kPa (30 psi)
12-23-2011, 01:35 PM
#3393
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Year: 1994
Model: Cherokee
Engine: 4.0L HO
Originally Posted by 89Laredo
Thats within stock specs and there is absolutely no reason you should have to run premium. Maybe its running lean? (higher octane=more resistance to detonation)
YKYDAXJW your vehicle can have a million things wrong with it and still run and drive every day.
12-23-2011, 06:16 PM
#3396
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Year: 1994
Model: Cherokee
Engine: 4.0L HO
Originally Posted by Daltonamorph
When you and your buddy make this for the camping trip next week:
12-23-2011, 09:37 PM
#3397
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Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
YKYDAXJW the highlight of your day is when you show off your jeeps Christmas lights to the co workers and how them how you did it.
Heck YKYDAXJW you have people honking and giving you thumbsup and smiles cause of the Christmas lights on your jeep
Heck YKYDAXJW you have people honking and giving you thumbsup and smiles cause of the Christmas lights on your jeep
12-24-2011, 12:32 AM
#3401
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Year: 2000
Model: Cherokee
Engine: 4.0L I6
Besides today, thats all Ive got.
And we only got a couple of wet inches of snow.
Last edited by ivantheigor; 12-24-2011 at 12:42 AM.
12-24-2011, 12:40 AM
#3402
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Year: 2000
Model: Cherokee
Engine: 4.7L I6
It's definitely not running lean haha. When I let my Jeep warm up in the morning the whole neighborhood can smell it. It doesn't smell as rich as a race car, but it's definitely running rich.
YKYDAXJW your vehicle can have a million things wrong with it and still run and drive every day.
YKYDAXJW your vehicle can have a million things wrong with it and still run and drive every day.
Im pretty sure that when the check engine light comes on it puts the computer into open loop where it runs a pre determined fuel and air log depending on RPMs and bypasses some sensors. (cause if the sensor isnt working then it corrects it.) but it usually makes the engine run rich.
im not sure for OBD1 but i know MOST OBDII vehicles do this...
this is why having the check engine light on kills gas mileage and can wear out seals in engine because gas eats at em more.
12-24-2011, 01:08 AM
#3403
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Originally Posted by liftedjeepxj
Yeah, Las Vegas, NV 3 days before christmas and this is what i get to enjoy!
12-24-2011, 03:48 AM
#3404
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Year: 1996
Engine: 4.0L HO
Or maybe thats just a Colorado thing..
Last edited by mrfajita; 12-24-2011 at 03:50 AM.
12-24-2011, 08:38 AM
#3405
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Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
Originally Posted by mrfajita
YKYDAXJ when you get a thumbs up and smile from chicks in a WJ, while driving in a snowstorm, 15 degrees out, in a t-shirt and a russian fur hat with the windows down and the stereo blasting. 4.0s run hot so the heater can overcome the leaky doors.
Or maybe thats just a Colorado thing..