Not a Ranger but still a 3.0
We've got a 2002 Ford Taurus that recently started giving us problems. The regular scheduled maintence and all has been kept up to date.
About a month ago the Cam position sensor went bad in it and we fixed it, no problems there other than finding the correct part. The problems it had at that time were straightened right out.
A couple weeks ago something else started acting up that we haven't been able to figure out. The car started loosing power every once in a while. It'll run fine normally, then you can floor the gas pedal and get maybe 20mph top speed, the engine dosen't even rev up, but it will gradually (slowly but gradually) start gaining power. That is the best I can describe it from my mother's account, it happened to her and my sister on multiple occasions, yet never when me or my father were in the car. What has happened to me is that a couple of times sitting at a traffic light idling it will kinda hickup (the RPMs drop excessively for a second or two) then surge enough that it almost tries to overpower the brakes, when the gas pedal isn't being touched. Granted I am lightly pressing the brakes but that's all it usually takes when a a complete stop.
Since the first codes saying the cam sensor wen't bad the car hasn't thrown any codes. Dad hasn't helped the situation any, he's a great mechanic but when it comes to FI he'll believe anybody, and start throwing sensors at it in hopes of appeasing the FI gods. The first thing was a "mechanic", who never seen or heard the car, told him that all it needed was to replace all the 02 sensors. The car only having ~85K miles on it it's unlikely that they were going bad, on top of theat it's extremely unlikely that all would go bad at the same time. I also know that everyone that dosen't know FI automatically blames all problems on the O2 sensors. Well when dad got home with 2 O2 sensors I told him that he needed to take them back, but he installed them any way. Guess what it didn't fix the problem, but I had tried to warn him. Then aginst my recommendation he goes and gets the 2 after cat sensors "just in case they are bad to", once again it didn't fix the problem. So that's 4 perfectly good sensors and $200 in the trash, just because he wouldn't listen to me. Then his next step is to take it to a shop, the mechanic there runs the most basic diagnostic possible on the car, and drives it a couple days to try to get the problem to reoccur (it of course didn't). The mechanic tells him that the portion of the MAF on that car that reads the barometric pressure is messed up and it's the only thing he can find wrong with the car, ok so there goes another 100-150 dollar part on the car that didn't fix the problem. Now 3-400 dollars in sensors plus what ever the test cost he's getting ready to run more. He's planning to take it back to the same guy to have more tests run on the car, and inevitably more money thrown away.
I can't figure out why he's so determined at throwing money at the wrong solutions when he's currently on LWOP due to rotor cup (maybe that's supposed to be rotor cuff IDK) surgery and can't work for the next month or two. He can't really afford to keep that up, needs to find right the fix.
Sorry for the ranting. If you skipped all that it basically said that dad waisted money on replacing all 4 O2 sensors and a MAF sensor without fixing the problem.
Before he goes and wastes anymore money on the car can yall come up with anything that might be causing the problem?
Thanks in advance for the help!
-Long bed -2.8L V6
-Offenhouser 4V Intake -Holley 390cfm Double-Pumper
-Manual Trans. -Colors: Blue & Silver
-Tires: Lemans SR P225/70R14
-Wheels: Ford Painted Magnum 500 Style Steel Wheels
1999 Ranger XLT
-4 Door -4.0L V6
-4X4 -BamaChips X2
-Chrome Brush Guard
-2 130watt 6" procomp stainless lights