Question about 2004 Ford Freestar
Thier are three sensors on the trany that could be having problems
Are you sure the code is u1059 ??.
Posted on Nov 26, 2012
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Posted on Jan 02, 2017
i will try to help. 171/174 indicates lean condition in engine. the mass air flow sensor is located in the rubber tube going to throttlebody. you can try to clean it. using mild carb cleaner safe for sensors, remove sensor from tube. spray clean the tiny wires located in the cylinder. do not touch them, they are very delicate. these engines are also notorious for leaking intake gaskets and faulty pcv valves. these will all set these 2 codes. feel free with anymore questions.
Posted on Nov 15, 2008
SOURCE: Ford Freestar Shut off problem
It is normal for the check engine light to come on anytime the engine stops running. If I were you and I took it to the shop I wouldn't say anything about what has been tried because it obviously isn't the problem. If you know someone that has a code reader or better yet someone that has an Autotap code reader have them check for error codes in the PCM.
If you have high millage on the van It could be a fuel problem such as a plugged fuel filter our even a fuel pump going bad. Can be checked with a pressure gauge hooked to the fuel rail.
On Freestars when the engine just dies they will set many different codes. Not all of them point to the problem, some of them set just because the engine died and was not turned off.
Posted on Sep 19, 2009
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