I have a 2006 GMC Sierra 5.3liter/automatic that is giving the p306 code. I have replace the ignition coil on the passenger side that is third from the front of the truck (#6), and the problem persist. The code is not persistent and will cut off on its on. It mainly occurs when the outside temperature is very hot and the truck becomes sluggish and the motor begins to miss severely. On two occasions the engine light has flashed. I have not noticed and rotten egg smell, but I have heard that there could be problems with the catalytic converter. Thanks for the assistance.

Question 1

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2006 mazda mpv runs with a lot of hesitation while driving. Used spare key runs better but not perfect

Its most likely the spark plug ignition coil(s). There's six. These cars will run forever until they throw a code for which one(s). You'll see lousy gas mileage too. What you can try is drive at a steady speed up a long hill. It'll buck a little but it'll give you a code. #4,5 & 6 are in the front of the engine from passenger to driver's side. #1,2 & 3 are at the back of the engine from passenger to driver's side. They're about $50 each and mine usually go bad one at a time. I'm on my third round of replacing these things.

Jan 02, 2015 • 2006 Mazda MPV

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How do i fix the Ignition Control Circuit High Voltage for 1996 GMC sierra 4.3 liter

Depending on the actual trouble code, the problem may be the ignition module inside the distributor or the coil.

Sep 11, 2014 • GMC Sierra 1500 Cars & Trucks

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Why after replacing the bose amplifier in my 2006 gmc denali only the passenger side speaker work?

U might have to have it re coded at the dealer . My aux input broke on my 2010 Chevy truck my buddy had replaced . He has the same year truck and gave me his old one put it in , didn't work so I called the deal ship and they said it has to re done

Aug 05, 2014 • 2006 GMC Sierra Denali

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My 2006 Mazda5 stalled then continued running yesterday after I got off the highway & check engine , on return the car stalled & stopped completely at red traffic light. What could be the cause and...

Possible loose air inlet boot off the air cleaner to the throttle body. Try taking it to a local Checker, Autozone or O'Rielys for a code pull which may give you a better idea of what is going on.

Dec 25, 2013 • 2006 Mazda 5

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I just replaced the O2 sensor behind the cat on the passenger side. I was told to check the fuse as well. The truck is a 2006 GMC Sierra 2500 HD. I have no idea what fuse needs to be checked. I can't...

there isn't a seperate fuse for the o2 sensors as such, they are controlled by the PCM. The fuses are listed on the inside of the box under the hood.

Apr 27, 2011 • 2006 GMC Sierra

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Location of O2 sensor on a 2006 GMC Sierra 2WD. Location 2 Bank 2.

behind the converter on the passenger side the furthest from the engine

Feb 25, 2010 • 2006 GMC Sierra

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2answers

I have A 1991 GMC SIERRA, 350,no fuel no spark, have fuel to the tbi, changed coil, ignition module, tested pick up coil good, check engine light comes on with key, fuses good. I'm running out of ideas....

Do you have power to the injectors? One of the wires to the injector will come on for a couple seconds as soon as you turn the key to the on position.The computer controls the ground side. If you do not get power to one of them start looking for an open circuit. The same power source will also go to your ignition coil and ignition module. If you do not have power on the pink wire to the coil apply a temporary fused battery power source to it and give it a try, this will also power up the injectors.
Check it out and let me know.

Oct 29, 2009 • 1991 GMC Sierra

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Where do I find ignition control module on a 97 GMC Sierra

It is right beside the coil on top of the engine passenger side. It is a little black box with 4 pin connecter on it. email me [email protected] with your problems. May not be the ign control module i just played with the same truck and it was a different problem. I bought the ign module $180 for no reason. Let me know what ya got... Hope this helps

Oct 27, 2009 • 1997 GMC Sierra

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96 dodge caravan 3.0 has p300 and p306 codes,

A P0306 code means that the the ECM has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #6.

A code P0306 may mean that one or more of the following has happened:
Faulty spark plug or wire, Faulty coil (pack), Faulty fuel injector, Burned exhaust Valve, Poor compression, and Defective computer.

Check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the Caravan, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). The number six cylinder is the one towards the radiator and drivers side. If you are going to change all the plugs and wire keep me posted, be glad to help. Good luck and hope this helps, P0300 just means multi miss fire.

Jun 22, 2009 • 1997 GMC Jimmy

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2006 gmc sierra

sounds stupid, but try replacing the ingition seitvk, I had same problem with my 97 Jimmy, did everything you did befor replacing the ignition harness. bad wires in ignition switch sends low voltage to trans harness

Jul 12, 2008 • 2006 GMC Sierra

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Ron

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Posted on Jul 29, 2010

Ron

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Pull # 5 plug and have a look at it .. because they fire so close to each other it can confuse the pcm about wich cylinder in having a problem. I have seen this between #7 and #8 on a few occasions. As you see the firing order has those two close together. 18736532

Testimonial: "would it do this in only hot conditions?"

Ron Jul 29, 2010

P0300 is a general misfire code and would be more likely to come up if it was outside temp related , also I see I made an error and put 3 in twice .. It should be 18736542 . That being said , I would still pull the plugs and check to see how they are firing .. A bad plug or coil will show more in hot engine conditions .

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2006 mazda mpv runs with a lot of hesitation while driving. Used spare key runs better but not perfect

How do i fix the Ignition Control Circuit High Voltage for 1996 GMC sierra 4.3 liter

Why after replacing the bose amplifier in my 2006 gmc denali only the passenger side speaker work?

My 2006 Mazda5 stalled then continued running yesterday after I got off the highway & check engine , on return the car stalled & stopped completely at red traffic light. What could be the cause and...

I just replaced the O2 sensor behind the cat on the passenger side. I was told to check the fuse as well. The truck is a 2006 GMC Sierra 2500 HD. I have no idea what fuse needs to be checked. I can't...

Location of O2 sensor on a 2006 GMC Sierra 2WD. Location 2 Bank 2.

I have A 1991 GMC SIERRA, 350,no fuel no spark, have fuel to the tbi, changed coil, ignition module, tested pick up coil good, check engine light comes on with key, fuses good. I'm running out of ideas....

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2006 gmc sierra

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2006 Sierra 1500 2WD

2006 mazda mpv runs with a lot of hesitation while driving. Used spare key runs better but not perfect

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