Search results

Agree with the o2 foolers. I had the same issues with my aftermarket catalytic converters. Added one on each down stream cat. No cel. Be advised, only ngk o2 sensors work properly. The voltage high indicator implies a non ngk sensor. Mechanics can be wrong! The sensors are relatively easy to...

Two things I experienced when I did the heater core flush and had to replace the blender door actuator. I also had no heat. First I burped the coolant to remove the air bubbles. Parked Jeep on an angle with the front end up. Opened radiator cap (when cold). Using funnel added coolant until no...

I had the same issue. You can view my previous posts as to what I have done to my 12 jku. After much frustration and more frustration. For me it turned out to be the security fuse/breaker. I pulled it out. Cleaned contacts. Moved several breakers/fuses around. Now, no more starting issues. Knock...

That’s probably what I’ll do for now. At least until I research the dreaded anti theft system more. Just happy it’s not the transmission neutral switch. One thing I find most interesting. On my 69 mg midget, repairing and maintenance is so much easier without all the systems car...

Update, after several days of driving the no crank no start came back. I pulled the m13 fuse. And it started right up. So my issue seems to be with the anti theft system. Again, when this happens the anti theft light does not stay on. I’ll be investigating the skim unit next. The dealer wants...

Following, have the same issues with my 12 jku. My jeep specialist said it is the skim module ( anti theft) . I’m starting to think it’s the automatic transmission neutral switch. (Inside the transmission) .

Possible, but unlikely. Brand new mopar factory wire harness. New factory fuel injector harness. I’ll be looking at that next. It’s got to be a bad ground somewhere. Thanks.

Ok, to be specific. When the no crank no start occurs. Everything works, lights radio, ac, etc. the only warning lights on are, lightning bolt, cel, no others. Automatic transmission, does not start in neutral or 4 low. Does not start wiggling shifter. Replaced all batteries in keys. Keys...

Auto trans. Jeep specialist tested starter current and connections. All good. He also tested when the malfunctioning was taking place. With direct connection to battery, starter worked. Also, while non starting, checked fuel injectors for fuel flow. They worked for a nano second, then shut off...

Yes starter does nothing, no click, nothing. As my previous posts have noted. Everything electrical works. The only warning light is the lightning bolt, and cel, both go out after a short time. No anti theft light other than the initial come on. What I have done recently, other than...

I have upgraded battery clamps. New battery. No blinking or on anti theft light.

Oops , love spell correct. No drank!!! Maybe I should. It’s no crank!!!!

Ok my issues are still ongoing. To recap, random no start no drank after driving about 30 minutes. I can get it to start by using the battery cable remove, touch, reconnect . All power is on and works when this happens. Jeep specialist had it for a month, replaced the ignition. Threw codes...

I have the same blinking light. My understanding is that the hvac system is resetting itself. Mine appeared after I replaced the center blend door. Got the dreaded clicking and was driving the wife crazy!!! It’s a real pain to get to. Now I have a code that says blend door restrictions. No air...

Problem fixed. I never thought of that. Well done!

Oops. Not deliver, it’s delete! Stupid spell check!!!

I too have had key issues. Mine was the no start no crank issue. Took weeks to resolve. I had the original factory key that came with the jeep. Purchased 2 new keys from Amazon. Had them cut . Programmed with the jku app thru the OBD reader. All was good for several months, then problems showed...

Adding. I’m not a jeep expert by any means. One of my hobbies is working on older classic cars. I have a mg, mini cooper and now 2012 jeep. This forum is a valuable tool to help find and fix issues with my Jeep. Thank you all!

Ok, trans fluid is reddish in color when new. It appears like oil when dirty. The leaks from a trans come out from trans pan, bell housing, or at driveshaft. After changing my rear main, I sucked out old trans fluid with a device and replaced it with new. Important not to flush the trans...

I had what appears to be same issue. Hoped it was the oil cooler. Wasn’t, it was rear main seal with additional leaking from the torque converter seal(auto trans) . Crawl under, wiped down the weep holes between trans and block, look at it next day. Leaking there that’s probably your problem...