Question about 1993 Chevrolet C1500

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1993 chevrolet k1500 5.7 liter tbi engine runs rough when it gets up to tempature. like it is miss firing

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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tripletauto
  • 1450 Answers

SOURCE: 2003 Chevrolet K1500 4x4 multiple miss fire code P0300

IS IT POSSIBLE YOU GOT A WIRE CROSSED? or a plug is cracked and or gap closed up? i would check these. you have the 5.3? what kind of plugs are you running?

Posted on Dec 16, 2008

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LEFTY64
  • 69 Answers

SOURCE: 1990 CHEVROLET K1500 350 MISSES AFTER WARM

My first thought for a solution of your problem is plug wires. You have replaced some common problem areas for this situation but the plug wires are the most susceptible for causing a miss after engine is warmed up. Try replacing the spark plug wires and let me know what happens.

Lefty64

Posted on Apr 09, 2009

  • 819 Answers

SOURCE: On a 1998 Chevrolet truck, K1500, 350 engine, I have a dead miss.

if you are getting a CKP (crankshaft position sensor) code, and during you rebuild you had removed the sensor of moved it in any way, you probably need to perform a CKP sensor relearn. check with your local shops, as they need to be set up to do this, but it is not an expensive thing.

Posted on Dec 28, 2009

Testimonial: "Thank you very much for the answer, it will be very helpful when I go to the dealership."

tneubauer
  • 437 Answers

SOURCE: i need the firing order for a 1993 s10 blazer 4.3

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Hope this was of help to you.

Posted on Feb 07, 2010

  • 4088 Answers

SOURCE: p300 engine code replaced coil,wire,control module

P300 reads as: 'random/multiple misfire' which usually means all cylinders are misfiring intermittently. Suspect a defective crankshaft/camshaft position sensor or weak fuel system pressure. If only one cylinder is misfiring (check by sliding a test light probe [make sure the ground lead is clipped to the engine securely] between each plug wire boot and it's wire at the distributor/coil block to short out that cylinder's spark. The dead cylinder will not change when it's spark is killed. Try a new spark plug first, then test that cylinder's compression if no help. You could have a bad valve. If the old plug was wet with fuel, the injector is probably doing it's job. When this cylinder runs again, that may clear up the backfire problem. Hope this helps!

Posted on Apr 04, 2010

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1 Answer

94 tbi starts but dies unless u pump the gas it runs rough


This could be a whole range of problems from lack of fire to engine to a bad fuel pump or pressure regulator in the TBI but if all of that is good then check the Cat. converter to make sure it is not plugged or the muffler. As I have 1994 Chev Silverado myself I know you can pull the 02 sensor out ahead of the cat. and it should run better not well but better. It will relieve the back pressure to the engine.

Jul 11, 2014 | 1994 Chevrolet K1500

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Buick Lesabre 1999 - 3800 my 1 & 4 coil pack not firing why?


i bet it is the ignition module, have it tested at oreillys or autozone, it is what the coils bolt to, common failure, or possibly a crank sensor

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93 to 95 Ford F-150 V-8 engine....firing orders!


Here are the firing order diagrams for those engines and I hope that they will help you solve the problem that you are having. For some reason Ford has listed the same firing order for both engines starting in 1995.



1993 5.0 liter engine firing order.

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1993 5.8 liter engine firing order.

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1994 5.0 liter engine.

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1994 5.8 liter firing order.

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1995 5.0 liter engine.

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1995 5.8 liter engine.

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Jun 16, 2010 | 1993 Ford F150 SuperCab

1 Answer

Engine running rough sounds like a missfire changed plugs and leads


The wires could be mixed up a bit and this will cause miss-fire and rough running, can cause damage! Get a diagram and take you time with it. Your local library should have the info if not on line.... Google search.....

Feb 14, 2010 | 1993 Toyota Camry V6

1 Answer

1990 Chevrolet Astro, 4.3L TBI, runs smooth until it heats up, then acts as if it has a miss, and runs rough. It appears one of the throttle body injectors is not spraying fuel when it's running rough. I...


Chk. your egr. valve and see if its functioning, sometimes it gets a carbon buildup in the intake where it bolts on and also in the valve itself. Take it off and clean the valve with carb. cleaner and also clean out the intake with a screwdriver and shopvac, and make sure the valve works before you reinstall it, and also get a screaned gasget at your local auto parts store before you reinstall it in case you miss some particals in the intake it will insure that no particals will get into the egr valve.

Sep 07, 2009 | 1990 Chevrolet Astro Extended

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