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Old 12-21-2017, 03:52 AM   #1
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f53 poor idle warm engine

1996 f 53 when engine is cold starts fine and idles fine after driving and stop for fuel, when started it starts good but will not idle stumbles and stalls have to give it some throttle to get going. whats up
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Old 12-21-2017, 05:41 AM   #2
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Quote:
Originally Posted by jjtjr View Post
1996 f 53 when engine is cold starts fine and idles fine after driving and stop for fuel, when started it starts good but will not idle stumbles and stalls have to give it some throttle to get going. whats up
Ever change the plugs? Have a code reader and check. Could be simple to expensive!
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Old 12-21-2017, 07:16 AM   #3
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Could be MAP/MAF sensor , engine temperature sensor. Possibly the Oxygen sensor . You might not get a code , but with a good scanner you can look at the parameters and see which ones are not correct. A good mechanic should quickly diagnose the problem.
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Old 12-21-2017, 08:29 AM   #4
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The intake air temp sensor may cause this problem also.
Yes you need to get all three sets of codes (KOEO, CM & KOER) and post them back in this thread.

Here is a good code reader to get at most auto part stores.
The INNOVA 3145 Ford Digital OBD1 Code Reader.

Also sold on Amazon:
https://www.amazon.com/INNOVA-3145-F...rd+code+reader



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Old 12-21-2017, 10:58 AM   #5
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1996 f 53 when engine is cold starts fine and idles fine after driving and stop for fuel, when started it starts good but will not idle stumbles and stalls have to give it some throttle to get going. whats up
BTW...do yourself a favor by putting your MH and Toad information into your signature
This will really help in all your future posts, so you won't have to type it in each time.
You do this by:
1) Going to the top of this page and click the top left tab named “User CP”
2) Look at the menu on the left and scroll down to “Settings & Options” and click “Edit Signature”
3) In that text box type all the information about your MH, Year, model, length, mileage, any aftermarket extras installed, your toad and so on. You’ll be limited to 3 lines unless you become a IRV2 supporter.
Consider signing up and becoming a IRV2 supporter. It’s a small way to give back to what we all reap here.
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Old 12-21-2017, 11:18 AM   #6
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Quote:
Originally Posted by subford View Post
The intake air temp sensor may cause this problem also.
Yes you need to get all three sets of codes (KOEO, CM & KOER) and post them back in this thread.

Here is a good code reader to get at most auto part stores.
The INNOVA 3145 Ford Digital OBD1 Code Reader.

Also sold on Amazon:
https://www.amazon.com/INNOVA-3145-F...rd+code+reader

/
Good tip. I do wish though these diagnostic companies would make them friendly to flash updates on Apple computers. They always just support PC's running windows.

Anyway......
Our MH is a 2012 so we would need an OBD II device. Easy, no problem. In addition to that, we have 5 Star Tune installed. I have contacted 5 ST in the past and they told me that their device DOES read codes, but I have never used it for that purpose and don't know what range of codes it covers.

I have a 2 questions:
1) I'm sure a Innova reader would be much more detailed and helpful. Do you agree or do you know?
2) Let's say I ran into an engine problem, or a warning light of some kinda down the road. In order for the Innova reader to work properly, would I have to remove 5 ST first and restore to Ford Factory settings (like a dealer would require) or would leaving 5 ST installed make no difference for Innova?
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Old 12-21-2017, 11:45 AM   #7
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Martin,
The INNOVA 3145 Ford Digital OBD1 Code Reader works on OBD1 Fords only.
Your RV does not have the OBD1 system.
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Old 12-22-2017, 03:32 AM   #8
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Martin,
The INNOVA 3145 Ford Digital OBD1 Code Reader works on OBD1 Fords only.
Your RV does not have the OBD1 system.
Oh, Jeeze. Never mind.
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Old 12-22-2017, 05:12 AM   #9
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Quote:
Originally Posted by subford View Post
The intake air temp sensor may cause this problem also.
Yes you need to get all three sets of codes (KOEO, CM & KOER) and post them back in this thread.

Here is a good code reader to get at most auto part stores.
The INNOVA 3145 Ford Digital OBD1 Code Reader.

Also sold on Amazon:
https://www.amazon.com/INNOVA-3145-F...rd+code+reader



/
Seeing how this code reader only goes to 1995 and he has a 1996, but since a lot of motor homes have a chassis the is sometimes a year older, this might work. Time to check build date of chassis. And don't ask how I know this!
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Old 12-22-2017, 05:28 AM   #10
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Originally Posted by A32Deuce View Post
Seeing how this code reader only goes to 1995 and he has a 1996, but since a lot of motor homes have a chassis the is sometimes a year older, this might work. Time to check build date of chassis. And don't ask how I know this!
It will work.
All F53 Motorhomes with the 460 engine had the OBD1 system.
Do not pay any attention to the 1995 part as it works on all F53 Motorhomes with the 460 (7.5L) engine from 1989-1997. There was not a 1998 F53 chassis Motorhome.
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Old 12-22-2017, 06:20 AM   #11
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f53

Its a 96 but the chassis was built in 95 so its a obd 1 system, no check engine light is on, the millage is 46,000. I have a code reader and will check for any codes and will post thanks for all your help
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