Rotate crankshaft pulley clockwise to get all alignment marks to proper positions and inspect according to this scheme:
05 pathfinder finally fixed
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Possible thats why Im gonna do the leakdown. I was just doing a little exploratory surgery first lol. I have this posted on nissanhelp as well and they are suggesting the vtc sprocket is "stuck" causing the timing advance.Kestral wrote:Ok so if the engine jumped time that much is it possible the Pistons contacted the valves and bent them?
now that primary chain is were its supposed to be you can see that the intake cam sprockets dont line up as indicated by the gold paint. Also after closer inspection the cam timing chain tensioners are worn.
Last edited by selliott on Tue Nov 24, 2015 3:16 pm, edited 3 times in total.
The passenger side intake (vtc) gear timing is off. The primary chain all lined up properly but while I'm in there I will replace everything.DavidUk11 wrote:Just happened to be browsing this forum and I am no expert but......
That timing gear all looks too good and tight to have jumped so much or have tensioners etc been replaced? Are there no marks on anything to give guidance as to alignment?
Ok.......well after replacing the primary and secondary chains, tensioners, both intake (vtc) sprockets, then triple checking everything and spinning the engine by hand making sure everything checked out I put it all back together and It ran for about a minute nice and smooth then died. Now it is doing exactly what it did before, it acts like the timing is off its missing and backfiring and won't run for more than 10 seconds. Any thoughts? Could this be a pcm issue?
were the replacements OEM parts?selliott wrote:No stored codes and both cam position sensors , crank position sensor and both vtc solenoids were replaced before starting this messsmj999smj wrote:It's possible, but PCM failures are somewhat rare on Nissans. Could be a bad cam position sensor or crank position sensor. Any stored codes?
did you ever do the leakdown or compression test?
Replacements were from my old engine so yes all oem. I did a leak down but no compression test but if you touch the pos and neg terminals clearing everything back to base it will run normally for a few seconds then begins missing and then dies.eieio wrote:were the replacements OEM parts?selliott wrote:No stored codes and both cam position sensors , crank position sensor and both vtc solenoids were replaced before starting this messsmj999smj wrote:It's possible, but PCM failures are somewhat rare on Nissans. Could be a bad cam position sensor or crank position sensor. Any stored codes?
did you ever do the leakdown or compression test?
Ok so the dealership is dicking me around I paid a $100 to have it towed there then another $300 for diagnostics,i told them when I took it in that I knew the timing was off again but I'm not sure why. I also told them I had pictures of the timing setup before I put it back together if they would like to see them. So when they called me today they told me the timing is off 49 degrees each bank so I asked if they figured out why and they told me " we need to open it up and look at the chains because it was most likely installation error" 13hrs labor at almost $200 an hour I said no. I told the service guy I would bring the pictures in and they could look at them and he said "no that wouldn't tell us anything" I said well it would show you how they were setup and if I made a mistake you should be able to see it. The service guy then told me he would talk to the mechanic and call me back about the pictures. 5 hours later when he had not called me back I called again and the service guy said the mechanic would call me tonight (the mechanic lives a couple blocks from me and we are acquaintances) he didnt call and didn't answer my texts and when I called his phone is off. I am less then pleased about how this is being handled.
Here are the pictures please let me know if you see something wrong.
After install I spun the engine over 3 full chain rotations to make sure everything was still lining up before I reassembled.
Here are the pictures please let me know if you see something wrong.
After install I spun the engine over 3 full chain rotations to make sure everything was still lining up before I reassembled.
Well we found for some reason fuel trims are at 100%.We spent about 6 hrs testing and swapping parts, maf tests good, cam and crank sensors are working properly, injector pulse is good, oil pressure is good, compression is good, fuel pressure is good etc. We also pulled the inspection covers for the timing and It is not off. We tried artificially fueling it It does the same thing every single time....key off, key on, starts and runs for 10 to 15 seconds then the ecm takes over and changes something and it sputters and dies. Everything points back to the ecm so I have one coming tomorrow, if that doesn't work im out of ideas.
I'm having similar trouble with a P0011 code and think I have it narrowed down to the VTC solenoid. Have you checked the VTC solenoids on each bank for proper operation? Low oil level, dirty oil, or incorrect viscosity along with low oil pressure can also affect their operation from what I've read.
In your case, it seems logical to me that if one bank is advancing the timing and the other isn't, it would cause the ECM to go into limp mode.
In your case, it seems logical to me that if one bank is advancing the timing and the other isn't, it would cause the ECM to go into limp mode.
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