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oops wrong picture above the tests are the same

Lets try KOEO the map plugged in - probe the DK/RD (center) wire - what is voltage? thn engine at idle what is voltage? Chec the rubber vacuum connector. FYI a skewed MAP reading will affect ign timing.

I do not think the cyl head must be removed.... BUT again which engine 2.5L or 4.0L ?

please post ALL the codes, you will need a scanner key trick will not display all codes. any issues ie cruise control, ABS, fuel gauge.....

can you read wiring diagrams and use a test light ? I will add diagrams if your able. thank God for AC. Have a great 4th

you still have not told us which eng..... trade practice is ALL are replaced - You should first disassembly and inspect for exact cause of 'sound' Lifters are A uncommon issue - hum what and why questions - let us know.

Driver door ok - driver controls work on R/S door? or not driver or passenger controls work? I would look in the door panel. Can you use a test light and a wiring diagram? We can get you the diagrams.... TIP: before removing door trim panel get the plastic trim push fasteners they...

My 2cents 45 years wrenching. I strongly suggest you shop local. The wait, inspection, hands on, exchange, ADVICE, hints, gaskets accessories all weigh in favor of a professional parts store my choice NAPA. You would be done tonight instead of waiting. Often tax = shipping so that...

Ideally a new as opposed to a remanufactured pump, do not forget a gasket. You lost lots of coolant SO perfect time to replace thermostat (use correct temp) look at those hoses. Maybe even a flush. TIP's When you get replacement visually compare impeller - direction ? For T'stat place...

I am not sure will the vehicle recognize 35" wheels? Its Sunday I will not have jeep access till Wednesday....as to what size the modules can accept. So I gotta ask bigger brakes rear only - why? I am not understanding - bourbon not helping.

I would do them all - BUT I am a hopeless optimist - Have you tied an oil detergent ? "RISOLONE" is my old stand by. Valve medic also. Worth a try unless more than noisy lifters...

I agree with others - do not condemn just for low pressure - so much easier to address than a eng swap... step 1 put a mechanical gauge on eng to confirm pressure -often a loaner tool. an old 4.0L, at idle, HOT, poor oil, shitty filter, hi ambient will have single digit pressure...

did any searches with google show any promise? Did the salvage yard check the 'wire' they search a number of affiliated salvage yard for matches? Maybe try a 'what fits what' parts interchange* a dodge may have used same engine and maybe someone has that eng. *selvedge yards have this...

You do not need a DRS, most full function scan tools will read the codes - My experience It is the key trick or low end code readers that are lacking. And it appears the poster already accessed - thru part store scan- the issue P0740

have the transmission pan dropped filter replaced and refilled with ATF4. Not flushed, and again ATF 4. Trans cooler is a recommendation, if you feel need to modify your jeep GTG

This is a trans TCC issue Output rpm not within specification hi slip . SO No other codes? Vehicle STOCK? Not overheating? was trans ever serviced ? use ATF4 not a substitute not a universal just ATF4 . Clear codes and lets see if it returns. A trans cooler is best money you can...

Shawn - Any luck getting a replacement ?

it ran, you let it sit, now a no start - what did you work on, touch, change? What year? YJ @(87-95) mechanical pump ?

We have to guess - 700 do you mean P0700 ? I suspect there is a code other than the p0700, basically p0700 indicates the TCM has requested the MIL on. A scanner will be needed, the key trick is limited won't show all codes, the 'garage' their scanner should communicate and...

Sorry I do not have time to look for a common circuit to start with....hopefully you can read the attachments OR a colleague will have an idea