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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Idle problem - PCV?

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Old Dec 6, 2022 | 07:07 PM
  #31  
mapache's Avatar
mapache
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5th Wheeling
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From: Virginia
So, after a busy couple of months, tinkering on this a little bit at a time, I finally got fed up and took it to a mechanic. Diagnosis is that 6 of 8 fuel injectors are just open - dumping fuel into the cylinders. That would explain how it's running, and the gas-smelling smoke. But how did they all die at the same time? That sounds to me like an electric, or possibly computer problem.
The estimate to replace the injectors was $1700+. Seems like a lot to spend on an old truck, and not know for sure if it's going to fix the problem. Now, I can get a set of injectors for less that 200 bucks. Question is, will they be OK to put in there? IF they would fix the problem, I could then consider replacing with something more expensive (higher quality - ?).
Even if I need to replace the computer, that seems like a less expensive item, and could be done along with the cheaper injectors.
Just spitballing here...any thoughts?
Thanks.
 
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Old Dec 6, 2022 | 08:31 PM
  #32  
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rla2005
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Your diagnosis is suspect in my opinion. Way too much $$ for a simple injector swap.....if it is really needed.
 
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Old Dec 7, 2022 | 08:42 AM
  #33  
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torq'ta 5 8
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From: N.W. Alabama
Originally Posted by mapache
The estimate to replace the injectors was $1700+. Seems like a lot to spend on an old truck, and not know for sure if it's going to fix the problem. Now, I can get a set of injectors for less that 200 bucks. Question is, will they be OK to put in there? IF they would fix the problem, I could then consider replacing with something more expensive (higher quality - ?).
Even if I need to replace the computer, that seems like a less expensive item, and could be done along with the cheaper injectors.
Just spitballing here...any thoughts?
Thanks.
I'm with RLA2005, I wouldnt even saddle that horse, its got swayback/glue factory written all over it, LMR sells good sets for that $200 you said, you can test them yourself. see link
Manual Injector Cleaning - The How To Thread - Ford Truck Enthusiasts Forums
 
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Old Dec 7, 2022 | 07:19 PM
  #34  
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mapache
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5th Wheeling
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From: Virginia
Thanks for the responses. That's a good read on injector cleaning. That seems like a good, cheap way to start.
 
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