My vehicle turns on fine. Doesnt stall while in park. Once I start driving everything is fine, as I come to a stop sign or slow down, the engine starts to shake and wants to turn off. Sometimes it turns off and other times it doesn't. I turn it back on without issue and continue driving untill it reaches operating temperature. When the engine is warm, especailly in the summer, this problem doesnt occur. Which sensor might be malfunctioning? Perhaps the mass air flow sensor is dirty, or the throttle body needs a cleaning. Throttle positioning sensor? Idle air control valve? Air intake temp sensor? or the Oxygen sensor?

 

Hi YoungBosnian,

One issue that has been associated with stalling while slowing to stop or make a turn is low transmission fluid.

To accurately check your fluid, drive the car till the engine reaches full operating temperature - usually at least 15 minutes or more. Then park on a level surface. Set the hand brake. With your foot on the brake pedal, move the gear shift lever through each position (RND32), pausing in each position at least 3 seconds. This fills the valve body passages with fluid to give the most accurate fluid level reading. Put the transmission back into Park. Now check the fluid level. It should be exactly at the maximum/hot line on the dipstick. If you don't have a clear line in the fluid on the dipstick, wipe off the stick and reinsert it down the tube. Repeat until you have a clear line of fluid on the dipstick. If the fluid is a pint or more low (or high), transmission performance can be affected. If the fluid is low, the engine may stall when slowing to a stop or to make a turn.

Another thing you can do is check for any diagnostic trouble codes (DTC) that may be stored in the Vehicle Condition Monitor. To check, turn the ignition key to position II (ON) but don't start the engine. Press and release the VCM button on the trip computer to the right of the steering wheel. Now watch for any message to appear in the small display below the speedometer where the odometer/mileage counter normally appears. DTCs appear in the form of "FF" or "Fuel Fault" and a one- or two-digit number, such as "FF69" or "Fuel Fault 24." Let us know if you have a code stored and we'll try to help.

Cheers,

Don

 

When my car has behaved like this in the past it was due to a dirty connection at the MAF. Just my experience.

Larry

 

I agree with Don B. low tans. fluid will cause this. two different filter types can be used in the trans. The filter with the 1 inch pickup tube on the bottom requires 3.5 quarts of fluid.
The filter without the pickup tube requires 5 quarts of fluid.

 

I checked the fluid, it is definetly LOW. It says DEXRON 2, but I can't seem to find this anywhere on the market. Which fluid would you suggest?

 

Jaguar subsequently updated the specification to Dexron III, but General Motors ceased licensing that name some years ago. Today, the most widely available option I know of is Valvoline Dex/Merc (the conventional version in the blue bottle, not the synthetic version in the red bottle, which is too thin). NAPA bottles the same Valvoline fluid under its own brand.

Synthetic options include Mobil 1 ATF and Redline Oil D4 ATF.

Despite claims that Dexron VI is backward-compatible for Dex II/III applications, its viscosity is too low and it does not work optimally in the ZF 4HP24 transmission. I used it for a couple of years in our '93 XJ40 and didn't realize until I changed to Redline Oil D4 that with the Dexron VI, the torque converter was not transferring power properly. When I changed to the Redline, the transmission felt "hooked up" again, with better acceleration, better engine braking when descending hills, and a much more significant difference between Normal and Sport modes.

Cheers,

Don

 

I had similar problems in a 94 XJ40 3.2 (last of the breed) and it was an oxygen sensor.

 

The stalling issue was fixed once i topped up my transmission fluid! Really appreciate yall help. Bless

 

Thank you for reporting back, YoungBosnian!

I have marked your thread RESOLVED!

Cheers,

Don