91 S10 BLAZER 4.3 LITER

1991 Chevrolet S-10

Tiny

emmell2560

April, 2, 2011 AT 9:12 PM

91 s10 blazer 4.3 just installed new distributor have spark, have fuel, engine will not start just's turns over

FOUND 51581 RELATED QUESTIONS

10 Answers

Tiny

JDL

April, 2, 2011 AT 9:22 PM

Were you having this issue, before you worked on it? If the computer doesn't see an rpm signal, it won't pulse the injector/s. With bypass ignition system and o/p switch in the fuel pump circuit, it is possible to have spark at the plugs and fuel pressure, engine cranking, even though the computer doesn't see an rpm signal, but, no rpm signal, no injector pulse.

Tiny

JDL

April, 2, 2011 AT 9:23 PM

If TBI, can you see injector spray pattern, engine cranking?

Tiny

emmell2560

April, 2, 2011 AT 11:38 PM

Blazer was running fine and just shut off like someone had turned off ignition switch. Had bad pickup coil in distributor so I replaced distributor, cap, rotor, wires. Can smell and see fuel in tbi after cranking. Where do I go from here? Thanks Chris

Tiny

cadieman

April, 3, 2011 AT 12:11 AM

If u replaced the complete dist. U need 2 remove it get the motor on top dead center then put it back in with the rotor pointing to the #1 wire on the dist. Cap.

Tiny

emmell2560

April, 3, 2011 AT 12:28 AM

Thought It might be a timing issue will try in am when I can see. Was having a hard time reading degrees on pointer to find zero. Do you know which end of pointer 0 is at?

Tiny

rasmataz

April, 3, 2011 AT 8:20 AM

Also check the fuel pump and oil pressure switch

Tiny

emmell2560

April, 3, 2011 AT 2:25 PM

I have fuel in tbi. Where is the oil pressure switch? Do you mean sending unit? And how do I test it to see if it's bad?

Tiny

cadieman

April, 3, 2011 AT 4:26 PM

If u removed the dist. And didnt put it back right the engine is out of time.

Tiny

cadieman

April, 4, 2011 AT 6:12 AM

Parts store will have the firing order and location of #1 wire on the dist. Cap. Then install the wires going clock wise. Gl

Tiny

rasmataz

April, 4, 2011 AT 6:26 AM

F/O clockwise 165432

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