WebAug 23, 2010 · There is a known issue with the "newer" 4.0L engines that involves the heat soaked engine causing the fuel in one of the injectors to vaporize and giving what amts to a misfire if you attempt to start the Jeep before it cools down. Strange thing is, it can pop up at any time even if it never happened before. WebFeb 23, 2011 · In this case, the engine continues to heat soak coolant which wants to rise in the block which pushes coolant towars the radiator where it's cooled by the air and flows …
Design Engineering 010378 Fuel Rail and Injector Cover …
WebSep 16, 2011 · After inspecting my Jeep he noticed it was missing the "debris shield" on the intake manifold. Apparently in warmer climates the 4.0s were getting vapor lock with the new intake and there was a tsb for it. He said some were fixed by simply as putting a wooden clothes pin on the #3 injector. That acted as enough of a heat sink to stop that … WebOct 19, 2024 · In this video I will be fixing the very common problem with the jeep tj and jeep xj 4.0 motor, with a only a little bit a heat rap the common problem can be easily fixed. Almost yours: 2... tdi diving t shirt
Heat Soak TJ 4.0 - Lone Star Jeep Club
WebJun 15, 2024 · We have come up with a solution for a common heat soak & vapor lock problem in Jeep models with inline 6 engines (1997-2004). DEI's Easy to install heat protection kit reduces heat soak on the fuel rail and injectors, in turn reducing vapor lock and keeping fuel cool. Fits 1997-2004 4.0L Jeep models with inline 6 motor WebOct 17, 2024 · If vehicle exhibits a rough idle, and if a misfire of cylinder #3 is observed following a 10 to 20 minute hot soak, perform the Repair Procedure. Parts required: … WebMar 12, 2014 · I think I am having the heat soak issue with my 2000 XJ 4.0. In the last few months I got the dreaded P0303 ODB code. I replaced the plugs, coil pack, MAP sensor, … tdi dog training