98 Pontiac gtp supercharged stalling

Asked by Aug 03, 2017 at 01:09 PM about the 1998 Pontiac Grand Prix 4 Dr GTP Supercharged Sedan

Question type: Maintenance & Repair

I have a 98 supercharged gtp with 110 miles and it
runs fine at idle but when I shift into any gear
besides neutral it dies it'll start back up but won't
shift and before this it would shake or jerk in low
Rpms when shifting into gear but when I went fast
into shifting it wouldn't jerk and I have no idea
what's wrong with it any ideas?

2 Answers


Start by scanning it for trouble codes.

Timing chains idler could be worn out Allowing for to much chain slop but usually last 100k Miles or crank shaft sensor or cam shaft sensors could be bad. The other weirdness I have experienced with this type of GM car is the harmonic balancer can also go bad making awful noises that seam terminal and just go away with new balancer. Sign of this when bolt holes to pull balancer have shifted

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