How To Troubleshoot A Bad Fuel Injector (Jeep 4.0L)
2011年4月20日 · Fuel injectors rarely go bad, but when they do, they will cause the engine in your Jeep 4.0L Grand Cherokee (or Cherokee or Wrangler) to miss and/or idle rough. The really cool thing is that they can be easily tested with a multimeter and this article will show you how to do a simple fuel injector resistance test.
How To Troubleshoot A Bad Fuel Injector (Jeep 4.0L)
2011年4月20日 · How To Diagnose A BAD Fuel Injector. Jeep 4.0L Wrangler, 4.0L Cherokee, and 4.0L Grand Cherokee. Fuel Injector Resistance Test. Testing a BAD Fuel Injector.
1996 XJ 4.0L No Spark at Coil | Jeep Enthusiast Forums
2018年10月30日 · The wiring diagram shows that the ASD relay (automaticshutdown relay) is connected to 5 different areas: 1) the ignition coil, 2) the alternator 3) the fuel injectors 4) the rear oxygen sensor and 5) the front oxygen sensor.
Jeep Cherokee Bad Fuel Injector: Symptoms, Diagnosis, How to Fix
2019年7月16日 · Looking for a damaged wiring harness is the first and easiest step to take if you suspect your Cherokee’s fuel injectors are failing. Inaccurate signals to the fuel injectors can result in engine misfires, decreased power, and reduced fuel efficiency.
Injector Swap Writeup for the 4.0L | Jeep Enthusiast Forums
2011年6月8日 · For pre-1996 engines, all you do is squeeze the white tabs together and CAREFULLY pull off the fuel line fitting. For 1996 and up engines, you will need a fuel line disconnect tool to separate the fittings (cheap at your local auto parts store). The fittings are different sizes so they can only go back on one way - no need to label them.
Jeep Cherokee 1984-2001: How to Read OBD Trouble Codes
2015年9月9日 · Instead of check engine light flashes, newer models use the digital odometer to read out the trouble code. If it is a 1990-1996 model, it has the first generation OBD-I port and basic codes and information can be retrieved. 1997+ is the modern OBD-II, which offers more detailed information; again, available from the on board diagnostics port.
Fuel injector upgrade for the 4.0, and how to?
2017年10月13日 · Should I check the cylinders or is this just an injector-hole thing? Benefits are pretty clear so far, and in line with what others have said. Sharp, quicker start time, and more pep in the 1500-2000 RPM range accelerating in low gear.
Cherokee 4.0 Injector ohm values - Jeep Enthusiast Forums
2012年9月4日 · The 14 Ohm injectors are probably okay since the readings are at operating temp. The spec is around 12 Ohms at 68* F. A big issue with injectors is very low resistance. This will eat the PCM injector driver for that injector. Replace that odd ball injector. Take resistance readings of all the injectors when they come down to ambient outside air ...
Injector Swap Writeup for the 4.0L | NAXJA Forums - North …
2011年6月8日 · best option is *703 injectors for pre-2000 XJs, and *784 injectors for 2000-2001 XJs (different electrical connector). Found in mid-90s chrysler/dodge cars/vans (late 90s for *784s) 1995 XJ Cherokee Sport
Injector Swap for the 4.0L - Jeep Cherokee Forum
2011年6月8日 · For pre-1996 engines, all you do is squeeze the white tabs together and CAREFULLY pull off the fuel line fitting. For 1996 and up engines, you will need a fuel line disconnect tool to separate the fittings (cheap at your local auto parts store). The fittings are different sizes so they can only go back on one way - no need to label them.