1997 GMC Jimmy compression check help

Tiny
96REALWE
  • MEMBER
  • 1997 GMC JIMMY
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 147,000 MILES
I just had the heads on this 97 GMC Jimmy 4X4, Auto, 4.3 vortex GM V6 machined, at this point the intake and exhaust manifolds are on and I would like to run a compression check before I put it all the way back together, but I have no power when I connect the battery, the battery shows 12.35 volts, on the positive side there is a thinner wire that connects with an eyelet that evidently needs to connect some where to have power to the starter. I can trace the negative to cable to the block and has continuity, the positive cable traces down to the starter. Also I have no lights or dash lights when I turn the key any ideas
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Tuesday, October 5th, 2010 AT 1:12 AM

4 Replies

Tiny
RASMATAZ
  • MEMBER
That thinner wire goes to the fusible link
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Tuesday, October 5th, 2010 AT 5:27 AM
Tiny
96REALWE
  • MEMBER
Hi Raz
Thanks for the response. Where is the fusible link? The wire from the battery is only 10" with an eyelet connector
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Tuesday, October 5th, 2010 AT 6:47 PM
Tiny
RASMATAZ
  • MEMBER
Is that wire colored black if so try tracing the battery positive cable to the starter motor-also check the starter if it has additional wires on the starter battery terminal-the links could be here too
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Tuesday, October 5th, 2010 AT 8:06 PM
Tiny
96REALWE
  • MEMBER
Had to hook up alternator to complete circuit
Thanks
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Thursday, October 7th, 2010 AT 11:07 AM

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