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1991 Chevrolet S-10 no start engine

Tiny
CHEVYREBEL79
  • MEMBER
  • 1991 CHEVROLET S-10
  • 4.3L
  • V6
  • 2WD
  • AUTOMATIC
  • 280,000 MILES
The engine will crank but not turn over. I have replaced fuel pump, fuel filter, fuel regulator, ignition module, coolant temp sensor, spark plug, wires, distributor cap, and rotary button but it still won't turn over. When I changed the fuel pump it still ran but with a rough idle at about 250-300 RPM so I done distributor cap and rotary button now it won't start.
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Wednesday, May 20th, 2015 AT 10:50 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
Are you getting spark and fuel to the engine? Have you checked fuel pressure to make sure it is within the manufacturer's specs? Is the spark at the plugs a good hot blue snapping spark?
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Wednesday, May 20th, 2015 AT 11:02 AM
Tiny
CHEVYREBEL79
  • MEMBER
  • 2 POSTS
Its getting 60 psi fuel pressure all wires are sparking blue and all plugs are firing
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Wednesday, May 20th, 2015 AT 11:07 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
Check injectors to make sure they are getting power. If they are, see if it will start with starting fluid for a couple seconds Let me know what you find.
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Thursday, May 21st, 2015 AT 5:54 AM

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