Mechanics

PASSING GEAR

1991 Jaguar XJ6

Transmission problem
1991 Jaguar XJ6 6 cyl Two Wheel Drive Automatic 156000 miles

156000

When you shove the gas pedal, car seems to just load up and will not go.I can gradually accelerate and the car will eventually go very fast.
Car runs somewhat smooth at start up but goes to a rough idle after warm up.
Avatar
Allend73
March 28, 2010.



NO POWER
Check for burned or sticking valves.
Check for incorrect valve clearance.
Ensure fuel system is okay.
Ensure engine compression is okay.
Ensure ignition system is okay.
Check for incorrect camshaft timing.
Check for incorrect octane fuel.
ROUGH/UNSTABLE IDLE
Check for burned or sticking valves.
Check for incorrect valve clearance.
Ensure engine compression is okay.
Check for blown head gasket.
Ensure ignition system is okay.
Ensure fuel system is okay.
Check for an intake air leak. (Idle speed will usually be faster if an intake air leak is present.)
Check for air leaking into or out of exhaust system.

Dave H
Mar 29, 2010.