1995 Chevy S-10 engine won't start

Tiny
BUFFALOBFAN1
  • MEMBER
  • 1995 CHEVROLET S-10
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 85,000 MILES
My son changed the spark plugs, dist. Cap and rotor and now it won't start before he changed them it would star but it skipped and blew black smoke when started and it skipped when accelerating. The firing order for the vortec 4.3 we have is 165432. Not sure if that is correct also
Thursday, July 10th, 2008 AT 8:23 AM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Start with the basics, and work your way up, Last tune up was? Wires plugs ALL filters? If all that is ok, check for a stuck EGR, then test fuel pump pressure, If it won't restart, determine what's missing, the engine needs three things to run, Spark at all plugs, gas to all cylinders, and compression in all cylinders, tho an engine may run lacking one in one cylinder, it won't run very well!
https://www.2carpros.com/car_repair_video/test_fuel_injection_pressure.htm
Go here and checkout our video.
https://www.2carpros.com/car_repair_video/test_engine_ignition_system.htm
and this one!


https://www.2carpros.com/forum/automotive_pictures/62217_Firing_order43a_1.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_Firing_order43b_1.jpg

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Thursday, July 10th, 2008 AT 9:12 AM

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