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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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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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

  • 69 Answers


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.


Posted on Apr 09, 2009

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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."

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


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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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.....

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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...

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