Question about 1993 Chevrolet S-10 Blazer

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1993 4.3L. vortec turns over but won't start... New cap and rotor gas tank, fuel pump and CPI unit... Any ideas? Thanks

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Check for spark at the plugs check firing order in correct direction on cap in relation to direction of dist rotation remove cap wind engine to see that distributor drive gear hasnt stripped a tooth if these are ok if its electronic dist the module could be faulty

Posted on Apr 06, 2011

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93 Jimmy with 4.3 vortec, Won't start, no spark. Changed cap, rotor, coil and ignition module. What would be the problem.


Have you checked your fuel pressure? Can you hear your fuel pump buzzing. Remove your gas cap and have a helper turn the key to the run position while you have your ear close to the open tank. If you don't hear anything you have a fuel related issue. Even if you hear the pump buzzing you need to check the fuel pressure as it may not be making enough pressure. If no buzz you may have a bad fuel pump, pump relay, or wiring problem to the pump. That is where I would start.

Apr 22, 2011 | 1993 GMC Jimmy

1 Answer

I have an 89 chevy c1500, 5.7, 2wd. Had it running and trying to get it timed. During this process i noticed the injectors quit giving gas. I put gas in it and nothing changed so i have been chasing the...


the reason the injectors stopped is because the motor is not running.this is a safety precaution built into the computer so the engine won`t flood.if the fuel pump is not working then you will have to check powers and grounds at the fuel pump connector by the gas tank to see if the unit is getting fed power and ground.someone will have to try to start the car while you check this out as there is a 2 second prime circuit if the car is not turning over.also this system uses the distributor to know that the engine is turning over to start.you may have a bad pickup coil in the distributor.this system also grounds the injectors through the ecm so you should have power to the injectors when the ignition is turned on,for your information.

Apr 08, 2011 | 1990 Chevrolet K2500

1 Answer

95 blazer not getting fuel new tank,sending unit/pump, relay. has 4.3l cpi vortec engine


Is the fuel pump actually working and if so, how far is the fuel going, is it stopping at the filter, or is it going all the way to the injector?

Jan 28, 2011 | 1995 Chevrolet Blazer

1 Answer

96 gmc vortec will not start


I AM LOOKING AT TIMING ISSUES OR INTAKE MANIFOLD LEAK.OR EGR VALVE STUCK OPEN.

Dec 30, 2009 | 1996 GMC Sierra

2 Answers

Hard to start and smell gas


have 1994 4.3 cpi and the problem I had sounds same.
It was a leaky pressure line in pletium . easy fix $45.00 part $15.00 gasket.
the leak was caused from the fuel lines rubbing together in pletium.
take the vortec cover off ,then remove air regulator in middle and look inside . I turned on power to key and gas spray came from drivers side of pletium looking in hole.fuel line side. if gas spray on passanger side then gas regulator faulty. takes 5 min to check
After fixing truck runs runs great. no more gas smell in cab.
also you can smell oil for gas

Feb 02, 2009 | 1995 Chevrolet Blazer

2 Answers

4.3 L Vortec problem, can anybody point me in the right direction


check the temperature sensor for the computer. it may be telling the computer that the engine is still cold and causing the engine to run too rich at warmer temps

Jan 16, 2009 | 1994 GMC Jimmy

1 Answer

98 chevy s-10 wont start


real comon starting problem for these is moisture in the cap and rotor and plug wires. replace cap, rotor, and wires. while you have the cap and rotor off check the two vent holles in the base of the distributer to see if the screens are plugged. be careful with the srews that hold the cap on the distibuters are plastic and will break.

Nov 14, 2008 | 1998 Chevrolet S-10 Pickup

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