my KJ is giving me nightmares.

[ZiadKiwan]

Hello Jeepers.
My jeep is giving me nightmares, i have been trying to fix it for 2 years and when i fix something another thing get broken, anyway i will state my problems here i hope you will help me, they are too much but meh please halp.
1- my jeep fuel cusumption is 7MPG YES 7MPG, NO i'm not LYING. i tried filling the car till F and drove around till it reached E and the result is 155.343M (250KM) which is 7MPG.
2- my jeep is emitting white smoke from the exhaust, while idling there is no smoke, while going slowly there is no smoke, only on high speed launch white smoke appears and goes away after a little.
3- my jeep dies while going up the slope, what ever my car speed is when i reach a slope my jeep starts to die till it reach the 2nd shift. for example: if i'm going 160 on a highway then a slope appears the jeep wont go fast keeps going slow it reachs the 2nd shift then it takes it force back and when it reachs 3rd shift it dies again, i don't know if you got the idea.
4- VERY HIGH OIL CONSUMPTION, i add ~ 1Killo of oil each month!.

what i did:
1- Replaced the fuel filter.
2- Replaced the air filter.
3- checked the catalytic converters.
4- made a compression test the jeep result on all the 6 spark plugs is 145PSI
5- checked transmission system
6- checked the front and rear differential
7- checked all the seals (oil seals) for any leak!.
8- Replaced Spark plugs for sure.
9- Fuel pump is in good state(should be).
NOTE: Check engine light is off.
Thank you, your help is really appreciated.
Best Regards!

 

[uss2defiant]

try:
1. changing the PCV
2. clean the TB
3. clean the IAC

 

[ZiadKiwan]

try:
1. changing the PCV
2. clean the TB
3. clean the IAC

Hello,
I replaced the PCV.
Today i will clean the IAC and the TB, thank you

 

[megatone]

This might be one of those cases where it would be a good idea and throw some money towards a good shop for a diagnostic evaluation. Maybe the ECM maps need to be reprogrammed.

 

[ZiadKiwan]

This might be one of those cases where it would be a good idea and throw some money towards a good shop for a diagnostic evaluation. Maybe the ECM maps need to be reprogrammed.

I sent it to all the workshops in town, We don't have those decent workshops here, that's why i went to here hoping for help...

 

[LibertyTC]

The minute I hear white smoke and mega oil consumption, I think of bigger engine problems.
How many miles are on this engine? Is the coolant reservoir remaining full?
Has this engine ever over heated? Have you ever looked inside one of the valve covers to see if it is clean and all is well, and how does the engine sound any rattles etc?
A scan for codes with a good shop scanner would really help for any pervious stored codes and live data would be helpful on the MAF and other sensors.

 

[ZiadKiwan]

The minute I hear white smoke and mega oil consumption, I think of bigger engine problems.
How many miles are on this engine? Is the coolant reservoir remaining full?
Has this engine ever over heated? Have you ever looked inside one of the valve covers to see if it is clean and all is well, and how does the engine sound any rattles etc?
A scan for codes with a good shop scanner would really help for any pervious stored codes and live data would be helpful on the MAF and other sensors.

My engine is on 111k mile, yes the coolant reservoir is always on the same level, no the engine never overheated, yes i looked inside the valve covers the engine looks good and shiny (like new), there is no rattles actually the engine sound is very smooth, i did scan with a bosh scanner and a launch scanner, no codes, no error, about live view if you can give me a toturial what the values should be etc i will look through them, thank you!

 

[Hockeygoon]

The minute I hear white smoke and mega oil consumption, I think of bigger engine problems.
How many miles are on this engine? Is the coolant reservoir remaining full?
Has this engine ever over heated? Have you ever looked inside one of the valve covers to see if it is clean and all is well, and how does the engine sound any rattles etc?
A scan for codes with a good shop scanner would really help for any pervious stored codes and live data would be helpful on the MAF and other sensors.

Agreed. Head gaskets or intake manifold gasket?

 

[uss2defiant]

are you loosing coolant by any chance?

 

[M38 Bob]

I'm not offended he just said the reality..., anyway could you please help me find the problem because it's ******* me off...

Rest assured, had I had anything constructive to add I would have. Occasionally a bit of humor lightens the suck of a bad situation.

White "smoke" does often indicate a moisture leak into high temp areas. (steam)

Bob

 

[ZiadKiwan]

are you loosing coolant by any chance?

No...

 

[ZiadKiwan]

Can anyone provide me a link to a tutorial for live sensor status using obdII?

 

[uss2defiant]

https://www.youtube.com/results?search_query=obd2+live+data

 

[ZiadKiwan]

Agreed. Head gaskets or intake manifold gasket?

Hello, there is no mixture of water and oil, and i don't feel like the jeep engine shaking, (broken intake manifold gasket) causes this issue