Fuel pressure injector sensor

osmoalec

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Hi, have an 03 Lincoln LS v8, and feels like is lagging. I started poking around and noticed that who ever had the car before be broke the stem off the fuel pressure injector sensor and just plugged the vacuum line going to it. Could this be my issue, or cause other issues down the line? Thanks
 
Yes, absolutely. The PCM uses that sensor to regulate the fuel pressure (via the REM). Without intake manifold vacuum connected it will read the pressure wrong and the fuel trims will be all messed up.
After you replace the sensor, if the engine is still sluggish or rough, the next step is to replace all the COPs (coils) and spark plugs.

Do you have a check engine light on? Are you getting any codes for the catalysts?
 
Ok looks like I'll try to get a new one asap then. I've already done valve covers and cops, which is why I was confused why wasn't making huge difference. I currently have check engine light on for heated O² sensors cause is blowing fuse., but nothing cat specific.
 
Well, that's another problem that you will have to fix as well. Start by checking the O² sensor wiring really good to see if it is chafing anywhere.
 
Think going to try figuring out that this weekend, tonight is replacing coolant reservoir for the second time in 6 months.
 
Think going to try figuring out that this weekend, tonight is replacing coolant reservoir for the second time in 6 months.

It's not a reservoir. Anyway, if you would get the Motorcraft one, you wouldn't have to go it again for six or seven years. If you put another Dorman/other-brand one in, you'll probably be doing it at least twice a year.
 
The degas bottle *, yeah I will be if this one goes for a crap. It was just hard to justify spending $360 on motorcraft one or 75$ for dorman one, especially if I don't know if I'll have it 2 years from now
 
Where did you get that price? The Motorcraft bottle is about $180. (Suggested retail is $260, but many on-line dealers will sell it for about $180.) Is the $105 difference really worth all the repeat time/effort, lost coolant, and added engine wear? There is no "if" about this one "goes for a crap." It will. There is lots of experience on here with that. Six months is about the max for the Dorman bottle.

http://www.tascaparts.com/oe-ford/5w4z8a080aa
 
first one fails....$75
Second one fails...+75=150
Replacing it again to sell (or trying to sell a car that overheats) +75 =225 or significant loss in sale value.

My time is worth a little more than $135 for 3 days of degas changing! (not including all the other parts your damaging with these overheating issues = thousands)

That said I hope your second one lasts longer... (or you wise up and fix it correctly now). If you do decide to keep, your going to face this decision several times... go with whats recommended here please (for your sake)
 
The 360 was through ford. And needed the part asap, so at the moment that extra couple hundred dollars is quite a bit as 19 yo in school.
 

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