hi my name is patrick i own a modified ford ranger with a ford 5.0L engine in it


but i am here to get help on my friends f150 he has a verity of obd2 trouble codes that came after he did a tune up on hte vehicle and his mechanic left a anti freezze line off and had fluid sprayed all over the engine bay

ford f150
2002
xlt
triton5.4L
4wd

obd codes as fallows in there groups
obd2 p0750, p1747, p0755, p0743if i am not mistaken these are all tarany codes
the overdrive is stuck in off and the truck seems to be very slugish taking off in from a stand still

p0135,0155, 1131, 1151, 141, 161
i belave thiese to oxygen sensor related but the truck just passed canadain emission test with flyingn colours

and code p0443 evap
can anyone help me please


gonna try doing a tranny fluid flush tomroow and yes i have cleard the codes and started form scartch still same issues
also gonna do some ohms test on the shiflt solinoids but the o2 sensors codes make no sens seeeing as how it just passed the emiisions i have the read out less then a month old if it helps

rpm 40km (25mile) 965 rpm idle 600
HCppm 6 o
co%0.00 o
NOppm 0 n/A


i was starting to think the harness but i am no experts
thanks in advance

 

Hello Pat,
Check fuse #23 in the engine bay.
That fuse powers a lot of areas and will cause many codes to be set for the various failures the PCM detects.
If the fuse blows at replacement there is a short to ground at some point along the harness or at a sensor.
Get those codes cleared then address any left over as a different problem.
Let use know how it goes.
Good luck.

 

ok thakns will check but seeing as how the truck runs kinda slugish and a a lean smell to the exhust with 91 octaine fuel it wasx the last thing i was thinking but it would excplaine alot will let u know what happens

 

wow i can not beleave it on e fuse all those variuse codes any thansk man how did u know that one fuse is the issue lasxt thing o ould have thought

i guess that last mechanic took it out cause there was no fuse pressent so for now i have a 15amp fuse inside i got to go get the corect fuse but all codes are cleard

 

Good that's all there is to the problem.
Most don't have the info to see all the things that fuse powers.
You would have had to list the codes, see what the codes are telling, then look on the power drawings to chase back to see what is powered by a common fuse then the light in the head comes on. AHHH yes!
The tipoff is the codes all seem unrelated but involve the transmission, the OX sensors and items in a harness going back to those areas..
Normally this never happens with a single fault, so it must be common in some other way. Power is the common point.
Some one grounded the harness at some point in time to blow the fuse or it was left out trying to find the trouble.
BTW, I cheat! Have 60 yrs. troubleshooting you just had the benifit of.
Saw all this before.
Happy Holidays.

 

happy holidays to you as well
yes i got lucky and thaknfull u knew how they were realted it would have been nice to refer to darawings but i can't find any for the ford trucks except my cution ranger

and the fuse was moved over by sone ones else the fuse in question was in a free spare slot and no one i am aware of has checked that fuse so we are pretty sure that the mechanic who did his tune up (i am not happy he did not bring it to me ) must have pulled it out for some reason or another cause he is the only other person to have worked on the truck since my frined baughter a few months ago ( and it did not have theat problem till after the mechnanic)
anyway much thatnks for the advice