Dear friends, i have been driving this KJ for 2 years and now it is given to my wife. I bought a WK CRD, and been driving for some time.
My question is related to KJ 3.7 it has bifuel setup, runs on propane and gasoline. My problem is not related to the fuel i choose to use.
When cruising at very low speeds, such as 20 mph, and wanted to accelerate fast, to pass a truck for example, when i floor it, it kicks down reluctantly,car acts sluggish for few seconds (compared to what i remember.) It accelerates, but slower than expected, it reaches to approx 4000 rpms, and starts to accelerate faster than it happens on lower rpm. feeling is like a huge(until 3900 rpm) turbo lagon a modified small turbo diesel engine. when reaced to 3900- 4100 rpm, it feels like somebody starts to push it from back
it feels like car is lack of fuel at higher rpms, but it is not, i know this because bifuel setup uses seperate injectors with seperate fuel tanks due to having LPG tank. i can switch tp LPG an symptom is same.
this is not a general loss of power problem. car is on 80k miles. no idling problems, no grinding noises, no shifting problems during normal driving conditions. no check engine light. ( what i know as a weird thing is, car vibrates for 1 second on hills, climbing on reverse gear while parking infront of our house ,actually i read it is common on this transmission)
can this be related to torque converter locking mechanism(thinking the reverse gear)? do you know when does torque converter lock?
any first hand experience? it would be highly appreciated to have reply from you.