new to forum. jeep liberty issue

05jeepliberty · Feb 11, 2025

Hey guys, new to the forum. I am having some issues with my 05 Jeep Liberty. I have been driving it daily for about 3 years and it's never really giving me any major problems I couldn't figure out until now. So about a month ago the radiator sprung a leak in the top driver corner and was spraying coolant out. I parked it until recently when I replaced the radiator and went for a drive. That's when it started running funny only well accelerating. The engine kind of sputters in and out for a moment then starts to clear up. The more acceleration the harder it does it. It seems like a fuel issue. I looked for a fuel filter and read some forums. Needles to say I just replaced the fuel pump assembly. And I am still having the same issue. I noticed however it seems to only do it once it warms up.
Where should I start next?

LibertyTC · Feb 12, 2025

Coil packs got wet with coolant probably. Use compressed air to dry inside coil pack & top of spark plugs, see if that helps.
When was the last time you replaced the spark plugs? Change them every 30k miles anyways.

05jeepliberty · Feb 12, 2025

Coil packs are about a year old. Coolant was spraying kind of at the back of the driver side head light. Plugs are probably over 30k. Will change plugs and wires tomorrow. Anything else I can cross off the list of possibilities?

JeepJeepster · Feb 12, 2025

No codes? If it were a misfire, I imagine it would throw a code.

05jeepliberty · Feb 12, 2025

I haven't plugged it in. I don't own a scanner and to afraid to brake down trying to take it anywhere. Lol. Trying the old fashioned way of replacing parts till it works I guess. Figured the jeep guys may point me in the right direction. The guy at the auto parts store was saying possibly the evap system. So far I changed the fuel pump. I can't find a fuel filter and have read it's built into the pump. Next I will do plugs and wires as suggested. I replaced all the coil packs fairly recently because the coolant tank leaked right on top of one and ruined it. did not do full tune up at that time though. I did run some cleaner in with the gas hoping if it were a dirty injector that would sort it out. It also sat from some point in mid December till a few days ago so if anything was wet from the radiator leak I'd assume that's enough time for it to dry out? To me it seems like a fuel issue but I really don't know because it seemed to be worse once warmed up.

JustSumDad · Feb 14, 2025

05jeepliberty said:
I haven't plugged it in. I don't own a scanner and to afraid to brake down trying to take it anywhere. Lol. Trying the old fashioned way of replacing parts till it works I guess. Figured the jeep guys may point me in the right direction. The guy at the auto parts store was saying possibly the evap system. So far I changed the fuel pump. I can't find a fuel filter and have read it's built into the pump. Next I will do plugs and wires as suggested. I replaced all the coil packs fairly recently because the coolant tank leaked right on top of one and ruined it. did not do full tune up at that time though. I did run some cleaner in with the gas hoping if it were a dirty injector that would sort it out. It also sat from some point in mid December till a few days ago so if anything was wet from the radiator leak I'd assume that's enough time for it to dry out? To me it seems like a fuel issue but I really don't know because it seemed to be worse once warmed up.

its worth grabbing a cheap Bluetooth scanner and get an app on your ph, you can get them literally under $10
I use an app called Torque and if you get a cheap ELM327 you have to do a little fiddling, disable fast communication usually, most work fine to just pull OBD codes. This one is on Amazon

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05jeepliberty · Feb 14, 2025

I never knew there were cheap scanners that work like that.. always thought they were expensive. Was raining bad yesterday and today is Valentine's day. Will work on the jeep more tomorrow

05jeepliberty · Feb 15, 2025

So just figured I'd update everyone on what I found out with the jeep. Changed the spark plugs today. there's water and oil in the middle cylinder on the passenger side. Probably not really wanting to mess with the head gasket.. but appreciate y'all advice

JeepJeepster · Sunday at 9:04 AM

Water actually down in the cylinder? Or just around the spark plug?

Are you losing coolant? I've only been around one bad head gasket on a 4.7 and it only causes misfires when its first started. Its been leaking for around 15 years, still running.

05jeepliberty · Sunday at 11:34 AM

Yup, losing coolant and oil.. no heat. Not looking good for the jeep

JustSumDad · Sunday at 1:22 PM

05jeepliberty said:
Yup, losing coolant and oil.. no heat. Not looking good for the jeep

just gonna say, if the body has zero to very low rust, I would fix that motor.

don't suppose your anywhere on Vancouver island

KJowner · Sunday at 1:39 PM

Pulling one head isn't a massive job, cheaper than a new car.....

JeepJeepster · Sunday at 9:29 PM

Yeah, with the way things are now days, I wouldn't hesitate to replace a head... Then again, I would just replace the head no matter what. Im not getting rid of my KJ.

05jeepliberty · Monday at 8:59 AM

Nope, already bought a 07 Dodge Dakota crew cab.. jeep has rusty floor boards, no rockers at all under the back doors etc.. cracked windshield and a few other little things. Was a good vehicle but I don't have time to keep messing with it. If anyone is in North East Florida I got a CHEAP 05 Jeep for sale. If it is still here by the weekend it's going to the junk yard

jmarks99 · Monday at 12:03 PM

05jeepliberty said:
Hey guys, new to the forum. I am having some issues with my 05 Jeep Liberty. I have been driving it daily for about 3 years and it's never really giving me any major problems I couldn't figure out until now. So about a month ago the radiator sprung a leak in the top driver corner and was spraying coolant out. I parked it until recently when I replaced the radiator and went for a drive. That's when it started running funny only well accelerating. The engine kind of sputters in and out for a moment then starts to clear up. The more acceleration the harder it does it. It seems like a fuel issue. I looked for a fuel filter and read some forums. Needles to say I just replaced the fuel pump assembly. And I am still having the same issue. I noticed however it seems to only do it once it warms up.
Where should I start next?

at minimum sounds like you've blown head gaskets and if overheated the cylinder heads may be warped. i've had an 04 sport liberty in the garage for 2 1/2 years now waiting for a new or rebuilt engine. looks like i won't have time to get to it this spring and am also considering selling it. however, i won't be junking it just to get rid of it. it's in too good a shape for that.

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