Question about 2000 Pontiac Montana

1 Answer

2000 montana 3400 engine,code p302 number 2 cylinder,replaced module,,one coil,new plugs,and wires.Miss occurs,then will clear,and come right back,compression good,spark,and injector pulse good.Sometimes after it goes a way ,does not come back until key is turned off,and right back on.

Posted by on

  • 2 more comments 
  • Ronny Bennett Sr.
    Ronny Bennett Sr. Jul 04, 2010

    The text I give you had that the code was p302 number two,tps has nothing to do with cylinder miss fire,and no other sensors do either,go back to the drawing board,learn your pros,and cons,and I also mentioned the ignition module was also replaced,sorry,no go here,I can not even rate.You will have to do better than this to become a guru.

  • Ronny Bennett Sr.
    Ronny Bennett Sr. Jul 05, 2010

    I will let you know,I believe I am going to find out the valve springs are weak on that cylinder,but not threw testing yet.

  • Ronny Bennett Sr.
    Ronny Bennett Sr. Jul 05, 2010

    If I had more than one miss,I would think ,sensors,but it is just one,and it only does it 50 to 60 percent of the time.

  • Ronny Bennett Sr.
    Ronny Bennett Sr. Jul 24, 2010

    I solved the problem myself,the new coil pack ,I had purchased(eclin)was defective,it was not producing enough voltage to the spark plug. flbergeron68 did not read the post(the problem) sounded like he just threw some things out there,and did not read the post,I had already posted what had been done to the vehicle,in other words,he was telling me to test everything I had replaced,and some had nothing to do with the cylinder missfire,


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 541 Answers

Ignition control module, throttle position sensor and other sensors need to be tested to establish problem, any codes from OBDII ? check engine light staying on ?

Posted on Jul 04, 2010

  • Fernand Luc Bergeron
    Fernand Luc Bergeron Jul 05, 2010

    let me know when you find the solution, i already had that problem on a 4.3 astro van and solved it by testing and replacing sensors for about 100$. the garage wanted to change the injectors for 1,300$ . it runs like a race car now, you be the judge !

  • Ronny Bennett Sr.
    Ronny Bennett Sr. Nov 13, 2010

    fibergeron,this is not a astro van,and it is not a 4.3,and sensors are not gonna fix the problem,you need to go back to school


1 Suggested Answer

  • 2 Answers

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

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Egine Code says miss fire block 1. What are we talking about?

I think it means that the number one cylinder is misfiring, which could be spark plug, coil, the plug wire, or the injector. Usually, if the injector is at fault it will have a code for that. Take the spark plug out and check the condition of the plug. If the plug seems alright, swap it with the number 2 spark plug and clear the trouble codes. If the plug was at fault, the computer should throw a code for cylinder 2, if it still throws a code for cylinder 1, then it may be the coil, If the engine has a distributor, change the distributor cap and rotor.

Dec 29, 2010 | 2000 Chevrolet Prizm

1 Answer

I have an engine diagnstic code of P1684 and P302 on my 2000 plymouth neon. The car jarks as it is pulling under load.

P0302 is miss fire #2 cyl like a bad plug,wire or coil P1684 will set if you have lost battery power or battery has been disconnected the miss fire is why the car is jerking

Mar 30, 2010 | 2000 Plymouth Neon

2 Answers

Have a 2000 ford explorer with a 5.0 V8 in the rain the other day started to skip and it shows cylinders 1 and 6 not firing. |Drove it two hour strait trip day before and it ran great. It ran great until...

It could be the coil, or the ignition module where there coils sit on. Start with the simple and check the spark plug wire first, then work your way to the coils and module. Once you work your way to the coils, try switching the coils around and see if the misfire will switch cylinders which would indicate a bad coil. If the same cylinders are still misfiring after the coils have been switch, then it's a good chance that's it's going to be the wire harness to the ignition module or the module it self. Good luck and hope this helps.

Oct 28, 2009 | 2000 Ford Explorer

9 Answers

Misfire #3 cylinder

Has anyone found the problem? My 2003 has #3 cyclinder misfire and I have replaced the plugs and wires. It runs rough at idle but smooths out at highway speed. Anyone have any knowledge on this? This sounds like a common problem.

Sep 09, 2009 | Cars & Trucks

1 Answer

Picture of 03 impala 3400 firing order?

The side of the engine closest to the radiator is the even number cylinders, 2-4-6. The side next to the firewall is1-3-5.

Looking at the coils from the front of the engine the one on the left is 5-2, center 3-6, right side 4-1. If the coils haven't been replaced the cylinder numbers will be on the top of the coil. The plug wires will also have the cylinder numbers on them if they have not been replaced

firing order 1-2-3-4-5-6

Aug 10, 2009 | 2003 Chevrolet Impala

1 Answer

P302 code

Check the coil for number 2 cylinder also check plug gap. this engine is 3.1?

Mar 22, 2009 | 1999 Oldsmobile Silhouette

2 Answers

1997 Saturn sl2 Code P0304-IC module cam reference

yes it is the ignition coils . po304 is a miss fire on #4 cylinder.wires and plugs should fix the problem unless ignition coil is not firing. there are 2 coils they run 1&4 2 &3 cylinders.

Mar 12, 2009 | 1997 Saturn SL

1 Answer

Engine misfire

we have the same problem down to the lights and everything
Did you ever figure out what it was?

Dec 09, 2008 | 2000 Pontiac Montana

2 Answers

Miss on # 3 cylinder

Check the plug and plug wire to #3, if they are ok test the fuel injector and test the compression on that cylinder.

Nov 09, 2008 | 2002 Ford Mustang

Not finding what you are looking for?
2000 Pontiac Montana Logo

574 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts


Level 3 Expert

75822 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8215 Answers

Are you a Pontiac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides