Bought a lemon
Thread Starter
JK Newbie
Joined: Jun 2024
Posts: 1
Likes: 0
From: Youngstown, Ohio
Bought a lemon
This Jeep has been the bane of my existence. A little history first.
Bought it in 2021. 2008 JKU, 6spd with 92,000 miles. No issues, "supposedly" passed Virginia inspection. First, found of the horn didn't work. No big deal. A few months later I started to get the TPMS light flashing and the red light sensor for the temp gauge randomly coming on. Was dealing with a slight loss of coolant, but no overheating. Took it in and they determined it was the radiator so that was replaced. No issues for about a year and that same issue came back a few months back. Daily during driving the temp gauge stays normal where it should be, but the TPMS will flash multiple times during driving with the damn ding to remind me and the red temp gauge light will flash a few times. Check the coolant overflow and it is damn near empty. Fill it back to max, still having the same lights. Cannot for the life of me trace where this leak may be. No smells, no mixing of fluids elsewhere, no loss of power. Just coolant disappearing. Back in 2022 had a bad knock in the engine at the end of a 2 hour highway drive, replaced the whole engine with a Jasper. So same issue, different engine. Now I am dealing with a sputter/misfire. They only codes showing are bank 1 and 2 sensors below threshold. No misfire codes. Its happening more at a cruising speed and 2200 rpms. Never really if I am getting on the throttle. I had about a quarter tank of gas when this started, never had it before. Filled the tank with some Sheetz gas and Redline Fuel System cleaner.
Love Jeeps, 4 TJs before this JKU, but this one has me beating my head against a wall!
Bought it in 2021. 2008 JKU, 6spd with 92,000 miles. No issues, "supposedly" passed Virginia inspection. First, found of the horn didn't work. No big deal. A few months later I started to get the TPMS light flashing and the red light sensor for the temp gauge randomly coming on. Was dealing with a slight loss of coolant, but no overheating. Took it in and they determined it was the radiator so that was replaced. No issues for about a year and that same issue came back a few months back. Daily during driving the temp gauge stays normal where it should be, but the TPMS will flash multiple times during driving with the damn ding to remind me and the red temp gauge light will flash a few times. Check the coolant overflow and it is damn near empty. Fill it back to max, still having the same lights. Cannot for the life of me trace where this leak may be. No smells, no mixing of fluids elsewhere, no loss of power. Just coolant disappearing. Back in 2022 had a bad knock in the engine at the end of a 2 hour highway drive, replaced the whole engine with a Jasper. So same issue, different engine. Now I am dealing with a sputter/misfire. They only codes showing are bank 1 and 2 sensors below threshold. No misfire codes. Its happening more at a cruising speed and 2200 rpms. Never really if I am getting on the throttle. I had about a quarter tank of gas when this started, never had it before. Filled the tank with some Sheetz gas and Redline Fuel System cleaner.
Love Jeeps, 4 TJs before this JKU, but this one has me beating my head against a wall!
Super Moderator
Joined: Jan 2014
Posts: 2,109
Likes: 465
From: SE Pa. W. Chester County
Welcome to the JK Forum... if coolant tank check the return line to/from the overflow tank for possible rub/leak. TPMS - I turned mine off with Jscan. Have no info on the mis fire coding for a 3.8.