Codes P1450 and P1451 show up, and ran diagnostic. The diagnostic machine can not find the problem. I know I'm losing fuel somewhere because I'm watching my fuel gauge. Also, oil dip stick smells a hint of gas. Any suggestions on the problem?
Did you fix the trouble Codes? Both are fuel related. There is a test done with a special machine called a "Smoke test". This could also find out if there are holes in your fuel tank and where.
The failure of your system to maintain Vacuum pressure is a good indication the fuel system has an opening.
SOURCE: 99 Expedition - Stutters and loses power when accelerating
My was doing the same thing, it was an EGR valve and a misfire on the #2 cylinder which required a new spark plug and a coil pack
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SOURCE: crown vic oil change
Some of them have an oil plug at the front of the pan, as well as the regular one. You have to drain them both. The front one only holds a quart or less.
SOURCE: engine oil capacity
Looks like it takes 6 quarts w/ filter. Check out the info;
https://www.amsoil.com/scripts/runisa.dll?amsoiloaf:index
SOURCE: p0503 p1451 codes
do it step by step
p0503
1- change vss sensor and recheck
2- check wiring of vss sensor
p1451
1- check wiring of EVAP vent
2- change Evap vent
SOURCE: Oil dip stick handle for Ford Focus ZX3 broke off.
Drill small hole in what's left inside the tube - insert bolt extractor - pull out dip stick. Material is relatively soft so drilling is easy. Buy new dip stick.
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