Backfire after cam sync change on a 3.0L V-6. | Ford Explorer Forums

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Backfire after cam sync change on a 3.0L V-6.

JayT

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November 1, 2007
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Year, Model & Trim Level
2003 Ranger, 4cyl 2.3L
Way back in winter I started to get a miss, and since the plugs had about 90,000 miles on them I changed them and the wires. Not long after, something else went wrong, and it started missing again, lacked power, and backfired (sounded like into the intake) on acceleration. The parts store pulled a camshaft position sensor code from the OBDII. Being familiar with this device, I pulled the sensor off the synchronizer to find the synchronizer had destroyed itself like they do.

I put a new synchronizer in with a new sensor but did not think I had it set right as the missing, lack of power, and backfire continued. Finding TDC compression was one of my weak points. Today I tackled the job again, and set the synchronizer correctly. I only drove 6 miles since then. Power is improved, no or almost no missing, but I did get one backfire my first acceleration to get out on the road.

My question is; Does it take awhile for the computer to recognize the sensor, and for the running issues to all straighten out?

Oddly a couple years ago I replaced the cam shaft synchronizer, and sensor and I know I did not set that one in place at TDC but I had no driveability issues. Why is that?
 



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No Part Number

Try to adjust it again. It shouldn't backfire. What OTC part # is your tool?

There is no part number. It was a plastic tool that came with the synchronizer. When looking from the back of the engine forward, it pretty much put the half moon of the synchronizer on the right side. That's considering the centerline of the synch lines up with the clamp down bolt. I hope that's right. *gulp* This ol' aero has over 200k miles on it, but I would like to keep it going another 6 months at least.
 






OTC makes several tools. I'm not sure which one you need, but here's an example of one that might work: http://www.eppys.com/ProductHighlight.aspx?ProductID=2451
2451_OTC6469.jpg

OTC6469.
 






My Sensor Tool

I took a pic of the tool I have that came with the synchronizer, and the half moon is on the opposite side of the one in your pic. I am hoping your pic is just a file footage example. Mine is supposed to fit the 97 aero 3.0 V6. Ford part number T95T is the correct one, but I do not know if that is what I have. Pics on the net only show it from the top. I was not able to put the pic of mine on here.
 












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