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Timing belt replacement is a pretty big job. I'd go to the parts store and pick up a Chilton or Haynes manual.
there is a sticker on your strut tower...my 88 is 8 degrees
Front of engine (behind serpentine belt).
if its a 4 cylinder, its located inside the timing case.
You don't- it's controlled by the PCM. If is has a 2.5 engine you cann't adjust the timing
Mine did this and I found out it was the timing belt that needed to be changed.
diagram of timing belt
behind timing cover on front of engine if its a 2.0 ltr ohc
can you show me a diagram
how do u change a heater coil on a 978 Pontiac Bonneville
After you have released the tension from the belt, remove the 2 obvious bolts that hold it to the engine block.