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6 Bad Injectors??

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Old 10-08-2007, 07:23 PM
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6 Bad Injectors??

Well I got off the phone earlier with the guys rebuilding my truck and they talked to Don M and said that all 6 of my injectors were bad. He said that they were all gummed up. He recomended to drop the tank and replace the cp3 pump. The only thing I don't get is how this happend? I fill up at the same station all the time which is the newest and best station in town. My brother also fills up there and I have for the past 4 years with no problems with either trucks besides this one. I tell you what it is one thing after another for this truck I have been without it for 2 months now and really eager to get it back.
Old 10-08-2007, 07:31 PM
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What micron filter do you have, how many miles?
Old 10-09-2007, 11:36 AM
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Maybe Don M will chime in on this one. Don, this is the set that we sent you the other week.
Old 10-09-2007, 11:54 AM
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Hmm, I dont know exactly which set this is. Need some more clues.

I just went through a complete set last night and this AM that all 6 were bad. The seats were trashed as bad as any I have ever seen. This would cause hard starts and decreased fuel economy. We could not get them to hold pressure for anything. Mucho internal leaks!!

This specific damage ( in this case ) was caused from dirty fuel passing through the injectors. Fuel filter either was not changed enough or the filter itself was letting stuff get by. The damage is easily seen with a microscope as low powered as 20X. You can clearly see the valleys cut in the seat. This allows the leaks past the check ball that seals against the seat.

Still cant say if these are yours or not.
Old 10-09-2007, 01:27 PM
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Both off 06 year model trucks?
Old 10-09-2007, 01:29 PM
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Originally Posted by Don M
Hmm, I dont know exactly which set this is. Need some more clues.

I just went through a complete set last night and this AM that all 6 were bad. The seats were trashed as bad as any I have ever seen. This would cause hard starts and decreased fuel economy. We could not get them to hold pressure for anything. Mucho internal leaks!!

This specific damage ( in this case ) was caused from dirty fuel passing through the injectors. Fuel filter either was not changed enough or the filter itself was letting stuff get by. The damage is easily seen with a microscope as low powered as 20X. You can clearly see the valleys cut in the seat. This allows the leaks past the check ball that seals against the seat.

Still cant say if these are yours or not.

Those would be the injectors that Reb sent out to you Don. They are the same set you just finished.
Old 10-09-2007, 07:26 PM
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I never had any hard starts with my truck and was averaging about 20mpg with it. I also change my fuel filter every 10,000-12,000 miles Maybe it is the crappy autozone fuel filter I use I don't know. The thing is me and my brother both use the same gas station and fuel filter so please let me know what could cause this so when I get my truck back I don't do the same thing to these new injectors.
Old 10-09-2007, 07:29 PM
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Also I forgot that the dealer also left the injectors in it when they took the head off and let it sit face down on the injectors on a concrete floor for 3 days. It also looked like they had been scooted across the floor when I picked them up.
Old 10-09-2007, 07:33 PM
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Originally Posted by Kman9090
I never had any hard starts with my truck and was averaging about 20mpg with it. I also change my fuel filter every 10,000-12,000 miles Maybe it is the crappy autozone fuel filter I use I don't know. The thing is me and my brother both use the same gas station and fuel filter so please let me know what could cause this so when I get my truck back I don't do the same thing to these new injectors.
I change my fuel filter every 3k not much after that... It would surprise you how dirty a filter is after 3k I can't imagine 10-12k....
Old 10-09-2007, 08:57 PM
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probably only needs one bad tank of gas to due damage, i would add extra filter just to be sure it doesn't happen again, seems like a truck could be down for a while with this kind of problem sounds like it usually is not an overnight fix
Old 10-09-2007, 09:50 PM
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Man, those autozone filters are junk. Get the premium ones from Genos and add a cheap prefilter.
Old 10-10-2007, 02:44 PM
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Better yet use a baldwin 7977 fuel filter. It's rated at 5 micron. The fleetguards and mopar filters are only rated at 7 micron. The older fleetguard and mopar filters are 10 micron.
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