• Tiny
  • onebob123
  • 1997 GMC Yukon

Engine Mechanical problem
1997 GMC Yukon V8 Four Wheel Drive Automatic 160000 miles

When I turn it over the engine will turn over but will not start and when I let off the key from trying to start it it makes a clunk noise. I have had the starter rebuilt.

Friday, January 8th, 2010 AT 10:20 AM

1 Answer

  • Tiny
  • JDL
  • Expert
  • 16,236 posts

Welcome to the forum, if it cranks good but won't start, have a helper crank it, while you check for spark at the plugs. If you have spark everywhere, use a gage and check fuel pressure. Some of the national brand autostores used to loan fuel pressure gage. You can call and ask. They also have a spark tester. You pull a spark plug boot loose, stick tester in boot, a known good spark plug will work also. You ground tester or plug to metal part of engine, watch for spark as the engine is cranked.

Was this
Friday, January 8th, 2010 AT 10:38 AM

Please login or register to post a reply.

Similar Questions