Software Mechanic
Well-known member
When I retrieved my 2000 Jetta TDI (296,000 miles) from my son, a long term loan, the transmission in reverse would not prevent it from rolling down the driveway (11% grade) and turning the engine. It was a fairly fast roll back, not a slow roll where the engine was straining to hold the car back. I remember reverse being able to prevent the car from rolling backwards when parked on the driveway.
A compression test showed all cylinders to be above 420 psi using an inexpensive compression tester from Amazon. Should the car roll backwards with 420 psi compression? Would a leak-down test give me useful information?
Thanks,
John
A compression test showed all cylinders to be above 420 psi using an inexpensive compression tester from Amazon. Should the car roll backwards with 420 psi compression? Would a leak-down test give me useful information?
Thanks,
John