Jeep Recent Questions, Troubleshooting Help & Support

3.8L V6, (from old 3.3l ) OHV ,push rod simple ) same car as one of mine, same engine, mine is 08 p0300 means all 6 cylinders fail or combustion pressure, weak. at random. so not 6 bad spark plugs news and gaped to speck so is bad fuel? so is 6 clogged injectors,, NO. hot engine has normal idle rpm 800 or screams only. yes that is called gross misfire and lost of engine power too you forgot to say. got AF radiator water in the oil pan , looks like like chocolate milk? mine has 100k runs like new, water pump only failure ever, 100k miles me. seems like bad fuel to me. ,diesel put in to gasoline tank? the only weakness this motor I know is 2. 1:lower manifold gasket leaks and AF coolant falls to top of engine and down. replace coolant every 5years is win to avoid that. 2: egr failure sticking open and a pain to reach, unless right finder pulled fully im sure compression tests pass at 150psi up. sure. 50k miles how can it fail.? make sure at AM dead cold engine, rad cap off rad neck is 100% full of AF. never let it drop, and keep side tank 1/2 full cold. never forget to burp the coolant here as you replace it all as you fill it up.(AF antifreeze coolant) hose off here, heater) fill rad until it leaks here hose back then fill rad full to top of neck. https://drive.proton.me/urls/2AJBWHFE3R#n9DXuC8sIcOD link is new pump installed steps PDF

https://www.fixya.com/cars/t27870849-clear_p1491_code_02_jeep_liberty_fan SEARCH MUCH? FAN CONTROLS DEAD OR FAN DEAD.

OPEN GLOVE BOX, READ USERS GUIDE. (INDEX PAGE, SEE FUSES , GO THERE) DONE IF LOST IT IS FREE, GOOGLE FINDS THEM ALL. LEARN TO GOOGLE .

no impossible by design. IMMO it is ,now and can not be stolen and drive away lacking a correct key car came new with 2 good keys , lost the 2nd?

NO. (BUT YES FOR HOW ACTUAL DOOR AJAR WORKS) FRONT OR READ DOME FAILING? WHAT LAMP IS FAILING STUCK ON OR OFF? NOT TOLD WHAT IS UP AND WRONG? CHECK ALL FUSE FIRST SCAN THE OBD2 PORT 2ND FOR DTC ERRORS? WHY SKIP THE SCAN. HAS BCM FOR THAT. THE LAMPS DOOM ON MINE HAVE AS SWITCH OFF, on, AUTO TRY ON FIRST. IF ON WORKS TRY AUTO IF IN OFF , IT WILL NEVER GLOW, AS ALL MINE ARE SET, i HATE DEAD BATTERIES. DOES THE DOOR CHIME WORK, DOOR AJAR? THE CLUSTER BRAIN , RUNS ALL INTERIOR LAMPS. PAGE 7369 OEM SERVICE MANUAL ANSWERS NOW interior lamps' page all switches go do Totally integrated power module under hood. the TIPM sense serial data via CAN_bus network to the cluster it sees that and turns on the domes both. there are 4 fuses to blow that can make the cluster brain fail. in the TIPM box.

The IMMO and PCM can not be willyynillyy swapped. they are married by dealer programming you did it all wrong. what does changed PCM mean a used one off ebay rebuilt and the derp that sold it did not tell you it will fail not matched to IMMO a new one from the dealer flat tells you as selected, it must be reprogrammed. the PCM and IMMO are not PNP ,they are not plug and play ever. and is why the car can not be stolen. (driven away with no good key) by DESIGN and in many cases now, BY LAWS some shops can also do this, with their JEEP license to do so, call em. ask.

no engine told at all no year told and ECT is not bad 99%^ of the time. it is overheating for 10 to more reasons and posted here vast times. leaking 50%AF coolant is top cause, or using only water< super bad that) 50%AF boils at 165F not told you your evidence of overheating. 220f is not overheating at about 225F the RAD fans kit on and must. is rad cap off deed cold in the morning, show RAD is 100% full of AF coolant? AF= antifreeze and anti-boil both. if there is air in the cooling loop the ECT then lies to you and the PCM both ECT does not work with AIR only coolant,,AIR means lack of coolant there. i will stop here. have 10 tests to find it. and tools you do not have to find it. leakdown tool IR thermal gun.

for the whole is huge. I buy mine or rent it. usa,/canada https://www.eautorepair.net/marketingpages/404.html

open glove box remove users guide turn to end ,index see words, FUSE an go there. bingo

the pressure test is next. or ATF filter bad.

that is a gas fire(well at the end point sure) top causes is others bypassing fuses or using wrong fuse. burning up the harness. and propagated to fuel lines or injector swaps or fiddled with and not using new o-rings or worse fake 0-rings, not VITON or rated by jeep as safe. same goes for any fuel lines there, damage or connections damaged. no country told ,why. recalls can be based by COUNTRY. and by ENGINE for sure and no engine told and was and engine fuel fire,that nasty. to me. there was fuel tank pipe weld failure recall on 1000 cars made not engine side,no other fuel word found search TSB data base me USA

ask the jeep dealer how. LHD to RHD conversions can be super hard. if lucky only new light assemblies ask them. uk jeep dealers,ask

how to, ? (you meant filler pipes)? no problem told just a question fully covered in the service manual no country told, tank parts are not the same world wide (laws etc) first tell what's up first. fails smog tests (station) leaks diesel fuel? PCM OBD2 vent errors DTC scanned. scan it yet? at gas fill up the gas blows back on to face? vents failing. "the short-lived 2.8 L VM Motori turbo diesel (2005-2006 only)" made here ( ibet all 3 are not the same) nor for all markets exported.

• United States: Toledo, Ohio, (Toledo North Assembly Plant)
• Egypt: Cairo (AAV)[2]
• Venezuela: Valencia, Carabobo

coil pack problems? new cam timing questions? no PROBLEM told all , so I answer blind and dumbb. we (USA)_ have no Cherokee here, 2011, are you in UK or India or? the Cherokee brand came back to USA in 2014,so you are not here. got yah. or or forgot it is GRAND.? << this>? or the SRT engine ? pulled the coil pack wires all at once. sure. never do that, it's 1 by1, but is not using old 2000 coil packs. no engine told at all not even v6 or v8 or size told no vin told so i can tell you what is under that hood. google vin decoder and see for your self first our GRAND has 4 engines, 1 is diesel so not that. our GRAND is 3.6L 1 - 2 - 3 - 4 - 5 - 6. uses COPs, no coil packs just 6 cops o 5.7L 1-8-4-3-6-5-7-2. uses COPS. the PCM and harness break outs set order. 5.7L USA has twin COPS, 2 per bank 4 total. and going plug in one way. 6.4L 1-8-4-3-6-5-7-2. ditto. seems not sold in USA. ( data is hard to find on it)

6.4-liter SRT HEMI V8 engine that is only available on the Jeep Grand Cherokee SRT.

no jeep told at all, 1941 to now. zero guessing 80+ years of jeeps not told what transfer case is there. lots possible. and are not the same. using part time 4wd on pavement causes lockup aka crab walk wind up. part time is for, offroad. only, or tires on ice or snow. not for pavement dry or only wet.period once this error is made there are only 3 cures. move 1/2mph ,no turns) and shift to 2wd. or move truck so that 1 tire or more are onto ice,dirt and shift to 2wd or jackup 1 tire off the road.and it UNWINDS now if doing this all wrong,the the transfer case chain is damaged. learn what part time means some even tell lies about it. part time means off road think about if pavement is covered in ice you are off road. see? part time has no center differential or a slip clutch device. no year jeep told no model jeep told no transfer case told i guess this. 241 is part time only. no Full time , no AWD the last digit 1= part time, 2 = full time 8 types exist. 241 = part time,. one of many made for 80 years. 1995 here.

no problem told at all, radio or CD dead. or doing radio upgrades, must be guess the JOB>? there are many radios used, sold with car,day 1new. and wiring is not the same the lower right corner of the real jeep radio as like 3 digit code like REC or lots of others not posting real radio model codes gets you no answers you meant grand cherokee sure. the service manual on line covers this. pay $20 and read it. no country told, my answers are USA only and OEM spec stock cars only. got the CD changer version? now? got the huge amp model version some have antenna amp versions. got steering radio controls , those will be dead if new none jeep radio is used the schematic is 14 + long pages, I refuse to paste here, Hard. see them here https://www.eautorepair.net/marketingpages/404.html with this radio 1999-2000 Jeep Grand Cherokee AM FM CD Cass Radio Receiver P04858540AG OEM the pin out for this radio is clearly shown on top of chassis, sticker. just one of many , new. 2000 jeep 'learn to pull the radio out and photo the radio sticker and then ask how it wires up, it also uses serial comms from PCM on some model versions yes complex.

I drove mine (gold) for 250,000 miles . 4.0L fuel injected. one of the first for jeep.the ISC /IAC on mine failed every 10,000 miles.just gunked up,cleaned it every time and every time fixed it.RENIX french fuel injection here go easy on this wild wild ECU.(hard to find parts for that)PCV also loves to clog so clean it all. (orifice type)EGR here, the only years, 4.0L had EGR on left side of Intake man, a huge deep Intake manifold. must not be stuck open ever. at idle, it too must be cleaned.but this, old I'd replace EGR and even first hint of failing or sticking EGR.Tech answers:this engine runs off VACUUM pressure ( that MAP sensor)Map + engine load + rpm = fuel mix. called the speed density system.when it stalls and spark is good. and fuel pressure is specthenair supply is wrong, IAC IS dead. is 99% cause, mine failed 10 timesso I did this magic trick, in spray can "E&L dry gun lube."ever see what hunters uses, way way up north, hunting say Caribou.they use dry gun lube. (no wet lube allowed, all old oil cleaned off this old ISC.the spray is full of , many elements, graphite and more, that drys and lookslike teflon fry pan when done and made my jeep go 50k miles before that silly small motor ISC failed again.I spray the removed ISC cone(valve)shake can 1 full minute first.?https://www.amazon.com/CRC-Graphite-Lube-Aerosol-Black/dp/B007I9XUD0?th=1free service manual JEEP, 8MB, and realhttps://drive.proton.me/urls/Y8MTYACB8W#mahI1hurdTGP1988 version of book.ask more questions, know the 4.0L very well; I DO ,1987 to 2001.

not in USA, show where it , the rules are by your countries laws. "safety" you did not say grand Cherokee,so is not. It was sold as the Jeep Cherokee in markets outside of North America. ours is called Liberty that year. so is NOT in the USA<your car. imagine cruise out of control.? ALL MODERN CRUISE CONTROLS ARE LOGICALLY STRICT. (LAWSUITS) CURES./CAUSES ALL..

1. All fuses checked good,cab and underhood.
2. scan the obd2 port for DLC errors.bingo.
3. PCm.BMC ,etc, see CEL on check engine lamp
4. sees brake switch bad. (foot pedal switch)
5. sees transmission errors.
6. sees TBW errors but sure I'm repeating #2 (throttle by wire)
7. sees throttle errors, again I repeat #2
8. cruise switches bad.
9. clock spring to said switches bad. , DTC errors again.
10. wires to any the above bad.
11. no transmission told,but m/t clutch switch bad, or A/T PRNDL bad.switch
12. speed control servo bad, no t#6 (used only for Cruise)
13. mech error , transmission detected slipping grossly.

serfvice manual also states or added safety, the speed control system is programmed to disengage for any of the following conditions:

• An indication of Park or Neutral
• A rapid increase rpm (indicates that the clutch has been disengaged)
• Excessive engine rpm (indicates that the transmission may be in a low gear)

The speed signal increases at a rate of 10 mph per second (indicates that the coefficient of friction between the road surface and tires is extremely low). The speed signal decreases at a rate of 10 mph per second (indicates that the vehicle may have decelerated at an extremely high rate). why not scan it first. ??????? like 99% of all others do or by proxy (shops) ours is 3.7L gas engine, got diesel? no clue told ,drive train at all . zero on ours the IAC bad causes Idle speeds dead wrong. #7 above.

FASCIA FRONT REMOVE? Remove the fascia (2) to splash shield screws (1). Remove the lower fasteners (2) and disconnect the electrical connectors (1).

1. Remove the fasteners (2).
2. Separate the fascia (3) from the fender support clips (1).
3. Remove the push pin fasteners (3).
4. Remove the hood overslam bumpers (4) and remove the fascia.

all else works,? drives. runs and all lighting ok? UK car? why not just say country.? is the horn button failing or only alarm horn use failing. not told ,guess both????? on ours LHD, the relay is soldered down the TIPM( a new name for smart PDC) Fuse 22 and 23 good, h1and h2 fuses we check all fuses first and the scan the OPD2 port for DTC errors next. do not rip in to air bags,and get hurt done wrong,scan the OBD1 port.