Buzz test 3 and 7 are weak - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 02-28-2014, 04:43 PM Thread Starter
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Buzz test 3 and 7 are weak

Just did a buzz test on my 99 7.3 and it sounded like injector 3 and 7 are weak. Truck runs rough sometimes and normal other times could it be the uvch or is it injectors any help would be great thanks.
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post #2 of 4 Old 02-28-2014, 04:44 PM Thread Starter
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Truck has 230,000 miles on it.
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post #3 of 4 Old 03-05-2014, 03:26 PM
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Yes. It could be UVCH. You could swap those injectors around in different positions and see if the issue follows or stays.

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post #4 of 4 Old 03-05-2014, 03:30 PM
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Quote:
Originally Posted by 79 toy View Post
Truck has 230,000 miles on it.
Thats getting toward the normal useful life of injectors. Some longer some shorter but your in the typical range.

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