bad injector?

Reply Subscribe

Thread Tools

Search this Thread

Jan 3, 2010 | 03:53 PM

#16

gearloose1

Post Fiend

Joined: Jul 2005

Posts: 6,127

Likes: 6

I had original Factory flash on my 2005 before the October 30, 2009 flash.

It worked great.. cured cold start problem.

Jan 3, 2010 | 04:07 PM

#17

plowin4u

Thread Starter

Posting Guru

Joined: Feb 2009

Posts: 1,040

Likes: 0

From: Jackson

Thanks for input, I am definitely taking it in to get the latest flash, I am just wondering if my current problem is related to the ficm being disconnected? or something resulted from injector change?

Jan 3, 2010 | 04:16 PM

#18

gearloose1

Post Fiend

Joined: Jul 2005

Posts: 6,127

Likes: 6

Immediate question:

Does it make sense to completely power down (disconnect battery, turn on headlights) and let the PCM etc. lose their memory, including any bad habits learned when your injector failed?

FICM disconnected ought not to matter as it has non-volatile memory.

Unless there is more problems with the FICM...

Jan 3, 2010 | 04:39 PM

#19

plowin4u

Thread Starter

Posting Guru

Joined: Feb 2009

Posts: 1,040

Likes: 0

From: Jackson

You are right, I only disconnect batteries, and removed ficm, was trying to figure out what else could've caused extended crank time, it didn't do that before i replaced the injector,I was very careful when i replaced injector, everything torqued, and kept clean, dont know?

Jan 3, 2010 | 05:05 PM

#20

gearloose1

Post Fiend

Joined: Jul 2005

Posts: 6,127

Likes: 6

Then.. check FICM voltage.... and see if that is your suspect.

Assuming that your battery, alternator, etc is in great shape.

Jan 3, 2010 | 06:29 PM

#21

FishOnOne

Lead Driver

Joined: Feb 2005

Posts: 7,964

Likes: 2,664

From: The Great State of Texas

Quote:

Originally Posted by plowin4u

Just wanted to update thread, I replaced the #4 injector, truck is running great with no misfire, only issue at this point is the truck takes very long time to start,extended crank, was wondering if reflash will help, never brought truck in for flash yet. Still have cold start issue, runs rough

once it warms up, run's great.

I'm trying a oil additive product call "Rev X" with my current 15W-40 since I've read it's suppose to be the cats meow for fixing the injector stiction problems. I've been running it now for 4 days and it has fixed my rough running problem. It's pretty pricey since the recommended dosage is 8 oz that cost's ~ $64.

Or you can try running 5W-40 synthetic which ussually fixes this type of problem also.

Jan 4, 2010 | 01:43 PM

#22

plowin4u

Thread Starter

Posting Guru

Joined: Feb 2009

Posts: 1,040

Likes: 0

From: Jackson

Thanks for all the input, I will test my batteries and charging system tomorrow, and will post up progress as soon as i can, will definitely consider switching to synthetic oil because I change my oil every other month, I travel 500 miles a week.

Jan 8, 2010 | 09:07 PM

#23

plowin4u

Thread Starter

Posting Guru

Joined: Feb 2009

Posts: 1,040

Likes: 0

From: Jackson

Just wanted to update thread, took care of the extended crank issue with motor, cheezit nailed it on the head, it appears that i had some air trapped in it, ran engine for a while and repeatedly started engine numerous amount of times, not sure if it was trapped in high pressure oil rail or fuel rail, but in any event the engine runs great!