Question about 2005 Chevrolet Colorado

2 Answers

Engine light comes on. Code is PO305 #5 cyl mis fire.

Truck runs fine. No miss or sputter. Seems normal. Has new fue filter, air filter, clean fuel.

Posted by on

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 150 Answers

Po 305 is cylinder 5 misfire detected. I would check the plug wire for starters

Posted on Jan 30, 2009

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 13 Answers

Change the coil from any other cylinder if you got a diffrent code then you need to change your coil , if not do the smae thing for the spark plugand see if the code change , let me know

Posted on Mar 20, 2013

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
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.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

2002 ford f150 4.2 v6 automatic ,when in park or neautral motor run fine no miss revs up fine sounds strong but when i put in drive motor dies down low rpm truck will barley do 20 mph and thats babing the...


when your in park or neutral the throttle position sensor is moved to a different position it could be this because its worn in that spot really bad it could be a idle air control valve / or really dirty fuel filter but only you know when you changed it the other statements about dpfe and egr are also correct so if no code check engine light works /blown bulb ?do you see it when you first turn the key and the engine starts then goes out

Feb 27, 2015 | 2002 Ford F-150

1 Answer

I have a 1998 Chevy K1500 with a 350 and it runs rough from time to time and has a mis fire on #6


Looks like you covered just about everything outside the engine.
Since it has 225k on the engine, its possible the valves are carboned up or burned to where one of the intake valves fail to close some times.
You might try a compression test or use a vac gauge when it is running rough. If the problem was not happening before you changed the plugs, you could have bought some defective ones.

Jul 25, 2012 | Chevrolet 1500 Cars & Trucks

1 Answer

Service engine light came on took in for computer read at auto zone got a mis fire in cylynder one said crank sensor replaced crank sensor put new plugs and new wires new oil filter andoil cleaned mass air...


Cylinder 1 is not firing or is intermittently firing. Check the output on the coil associated with #1 cylinder by using a spare plug attached to #1 wire while engine is running. If it has good spark, check the fuel injector for possible problems. Crank shaft sensor would not be the problem as the engine has to have it to run. You may need to have it checked further at a reputable repair shop as this can get more involved than a back yard repair.

Mar 15, 2011 | 2004 Ford Taurus

2 Answers

I have 104000 on my dodge 2004 stratus I take good care and its been good to me. Its missing I got a mis fire in # 1cyclender code . Relaced the coil plugs and wires. Ran good for a few days now its back...


You need to get a fuel pressure test on your fuel manifold. Since you've done the electric parts it's time to check for weak gas pressure. It can give you a miss-fire at one or more cylinders. The test is fairly simple but can eliminate a whole system early in the process. Next after this is a compression check which is more difficult and involved.

Dec 07, 2010 | 2004 Dodge Stratus

1 Answer

1988 toyota pickup truck 4cyl w/FI : fuel delivery issue


try using a different key to see if its a key/code issue.if it fires then dies this is normally the first thing to look at.
to check fuel from pump try undoing the nut on top of one of the injectors, crank engine fuel drips out ...no problem...

Feb 25, 2010 | 1988 Toyota Pickup

1 Answer

My 2003 ford ranger sputters, shakes when I accelerate and when the AC is on, it is even worst. It is fine when it is idol. The check engine light is on. The code said camshaft position censor. I...


mis-fire
or i would check your oil and see if i looks creamy...that means you have a cracked head

or your timing is off..to fix this try to turn ur distributer a little to the left or right with ur engine running...when u do this the truck should try to shut off u have to turn it intil the truck seems to not shake

Sep 29, 2009 | 2003 Ford Ranger Regular Cab

3 Answers

Hesitation in engine


Actually there are two kinds of engine hesitation.One is from fuel then two is the air .The mechanic should check on the fuel filter .look if the fuel that is going to the fuel pump is dirty or worn out . check the fuel filter then look if it is dirty and needed to be replace or change.Then the second is that the air filter it should also be check if dirty then replace it so that no dirt will go to the engine . if these problems are not solved then the cylinder will be having a problem that will cause the engine to hesitate.And always check the fuel you use to place to the fuel thank if dirty or diluted just to be sure.

Aug 20, 2009 | 2002 Jaguar S-Type

1 Answer

Had tune up done on my 96 century new plugs,, wires fuel filter to solve a mis fire. Replaced coil pack on same cylinder. Runs fine until it warms up then the engine light starts flashing, and it seems to...


you could have a bad tork converter clutch and you could have a bad injector. also the new wire or plug could be defective but is not likely. Did you gap the new plug?

Aug 14, 2009 | 1996 Buick Century

1 Answer

2000 Chevy s10 2.2L very rough idle at low rpm


run a fuel pressure test, if that checks out fine it may be a faulty coil pack or ignition control module

Jul 28, 2009 | 2000 Chevrolet S-10

2 Answers

2001 ford taurus p0301 and p0303


You are mis fireing on cyl 1 and 3 if you replaced plugs and wires and coil this is going to be a fuel injector issue or valve issue. See if you can swap the injectors with known good cyl. and see if it changes. Or have a shop do a fuel injector service on it to see if it helps. It may be to late for the fuel injector service.

Mar 01, 2009 | 2001 Ford Taurus

Not finding what you are looking for?
2005 Chevrolet Colorado Logo

386 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

64052 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21990 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

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

Answer questions

Manuals & User Guides

Loading...