Guy9smiley2

Sounds like a lot of swinging in the dark. If that much has been thrown at it I'd just take it to your dealer and have it done. An ids can do a lot more than just pull a code and properly diagnosed. There's prob even a tsb out for rough idle since almost all idle rough to some point. I'd check fmcdealer but just left work.

Iowa

Have you checked your oil pressure. My BIL who works in a shop, said his ford tech told him that if my motor had under 75psi at 2000rpm that my engine is shot. On borrowed time! Replace it immediately! I checked mine last week and it was at 52psi at 2000rpm...

I'm guessing my issue is cam phaser jumped a tooth, timing chain tensioner is shot, or a bad cam phaser. I unhooked the CPS on bank 2 and my engine runs fine! No bad idle ever..

s_vares

If you look at my thread, its typical for the tensioner seals to blow out causing reduced oil pressure to the whole system. Happens all the time. This is why simply changing phasers is useless as they normally are not even the problem. The make noise when oil pressure is not up to snuff.

Iowa

I did take it to the dealer 2 weeks ago. They checked the ECU and did a back pressure check. Told me clogged cat converter. I asked to make sure nothing was wrong with the engine. He said no. Other than misfire on all 4 cyl on bank 2. But he said that's caused from the cat being plugged. I cut both cat converters off and welded in 2 brand new magnaflow cats.

Now rough idle and possible cam phaser issues?

I've been through 2 engines in this truck. This engine had 74k miles when it was put in. The other engine had 105k miles when it was yanked. How many engines does a guy need to put in in order to make it work properly?

Iowa

That makes sense! But I've yet to find out what the actual oil pressure is suppose to be. I've seen 40-60psi at 2000rpm posted on forums. And my BIL ford tech says it has to be 75+ at 2000rpm.... I think that's really high!

s_vares

you should be able to find an at idle number.
if you have phaser noise, you will usually find the problem when you tear into it.

Best of luck

Steve

Iowa

Not really wanting to tear into the damn thing at this point in time. We got 2 vehicles and both of us go opposite directions to work. Gotta have both cars. Plus I'd need to buy $200 in tools just to work on it.

Guy9smiley2

What's the oil pressure at idle? 3v have a ****ty idle even when nothing is wrong. Phasers will make noise when they start to go and ud it "jumped a tooth" you will have codes for sure and will run like crap all the way through not just an idle.

fatman1981

Well I have no idea where to start
Bought the truck about 3 weeks ago 220 km was running great
Then a misfire started
Changed all plugs
Still the problem was there
Changed cam sensors cam solenoidcam phasers and chains. Any Idea was I still have a rough idea at speed

JimmyB1232

Did you replace the o2 sensors when you did the cats? My 06' will have a rough idle every now and then and I have no F***ing clue what is causing it considering I've replaced every possible sensor, VCT solenoids, timing components with lock outs, FPDM, injectors, fuel rail, COPs, plugs, cats, and I don't even want to continue the list lol. Only thing I can think of is maybe a small vacuum leak or the manifold runners getting stuck or EGR/EVAP solenoid/canister/purge valve or whatever you wanna call it.