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Re: 97, 98, 99 FORD EXPLORER 4.0 DTC'S PO171 AND PO174.
Posted to Technical Discussion Forum on 12/24/2003 8 Replies

Yes...be suspicious of the intake o-rings on all Fords with plastic intakes.

Forget the smoke machine on this one...it won't help. However, if you didn't already spray carb. cleaner on the intake...I know a quick visual conferamtion.

Look at the area on th... Login to read more.

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