Anitomical
Member
So I figured out why it was suckin up quite a bit of gas. First the EGR vacuum solenoid had a wire corroded off so I fixed that, but it was still running a tiny bit rough and sucking down some gas still. And I get that it's a hefty old girl but to me it still seems a little much, but hey thats the life of owning one of these things. After I figured that out I took it to a shop to see why it was still running a little rough and they told me it had a misfire, so I changed out all of the coils and spark plugs (the plugs and coils I put in it were supplied by the shop and the spark plugs were a NGK V-Powered). Got them changed and it seemed like it still was missing a cylinder some but oh my lord did it have some power now, and it would actually rev up a lot better and just all around had more steam. But after putting about a hundred miles on it, everytime it got up to temp and idled it would be like really rough. Seemed like it was missing on more than one cylinder at times and at one point it about stalled, it dropped down past 500 rpm and about shut off on me. It also seemed to lose a bit of power too. And the check engine light has been on since I could remember, so I checked the codes the one day and they were all for the O2 sensors (P0135, P0136, P1131, and P1151). So I figured since the light has always been on that all 4 were probably bad, so I check it again the next day... the codes are P0135, P1131, and P1151, so I was confused because what happened to the one O2 sensor? Then again after a week, P0135, P1151... the O2 sensors keep coming back around?? And today I checked and it was just the P0135 code? I've read some forums about a vacuum leak which I will check for but I don't know how I can check to see if they're leaking or not.
Engine: Triton 5.4L 2V
Sub-model: XLT
Odometer: 176715
Engine: Triton 5.4L 2V
Sub-model: XLT
Odometer: 176715