My tachometer has lost it. It is bouncing everywhere. The last time this happened the timing was off. I checked and the distributor has not moved. the car is also taking extended cranking to start. my friend said that that usually means the timing chain is loose. is the hard start a symptom?? it is also not running very well at all. should i check the chain?? If so, HOW???

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1991 WS6 Trans Am
Dark Green Metallic
Camel interior
305 TPI
TH 700-R4, Auto
T-Tops, PW, PL, PM
Keyless entry, alarm
Flowmaster Muffler
Monza Dual Tips
K&N Filter

 

Check your distributor cap and coil.

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"So many Mustangs, so little time..."
ICON Motorsports

 

Check the connector that you unplug to check timing. It's a single wire next to the computer on passenger side. If its loose timing will change.

 

my tach started jumping all over the place when my alternator went out or started going out.. when i would go wot it would go right to 0 rmp then jump to where ever it wanted to. maybe this isnt your problem but it was mine.. just my .02 worth

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1988 firebird ws6 formula350tpi msd 6al box blaster 3 coil accel 8.8 race wires hooker shorty headers hooker cat back system pro shift light a pillar gauge pod and water temp and air/fuel ratio gauges autometer oil pressure gauge b&m mega console shifter, march underdrive pullies, tpis airfoil cvr high torque starter (love it)
best 1/4 mile run of 14.44@ 96.53
this run is before the new exhaust system