Hi new member here. I just recently bought a 98 jaguar xj8
A presiding issue was coolant spraying out when i stopped and turned off the car. Replaced a hose, thermostat, and water pump with belt. Worked for about a week and it started again

A day ago i stopped at a stop sign and when i released the brake i did not move. Gave it gas and it slammed into gear. This triggered a "gearbox fault" message and threw it into a limp mode. Check engine light was on. Throws codes for gear control malfunction 2,3,5 and 1,2,3,4 as well as missing drive cycle A,B,C (P1730 and P1000)

Changing the fluid today to see what i find. Does anyone known what could've went wrong? 87k miles so i cant imagine the tranny going out so soon. New to jags but know my way around cars and transmission.

 

Do a search of A drum failure, a common problem of the 5HP25 transmission. Your coolant problem may be due to the two coolant lines at the expansion tank: they should be cross over at the tank.

 

my 2000 acted up in similar fashion.Replaced the transmission control module and problem solved

 

You might also be overheating. if you were spewing coolant, the pipes to the overflow may not be correct.

 

I see. Whoever worked on this car last had those hoses on the wrong ends. The radiator one was on the left and overflow on the right. Not sure if it helped as I have the transmission out but im sure that was the cause

 

im pulling the transmission in the morning and the clutch a drum comes in tomorrow as well. Will check that, bearings and seals as well could be a culprits. Will reply back with results

 

I’d highly recommend replacing the rear main oil seal and the cap seal about 3” above it also.