Re: Ford F150 Ign timing/cam timing woes. fixed
Posted to Technical Tips Forum on 7/6/2012
Ted,
Your little adventure reminds me of a similar experience I
had a few months back on a rear-wheel drive Lincoln (about a
2001, sorry, don't remember exactly). It fell on its face on
moderate acceleration seemingly at random; pulling over and
slowing way down (not much choice there) caused it to perk
back up again, until the next random event. After spending
more time than I would have liked trying to nail it down, I
finally caught the timing advance PID at zero during the
event, and by chance noticed the traction control light on
the dash at the same time! In my defense, it was a bright
day, and the light doesn't have much contrast to begin with,
but deactivating the traction control definitely nailed the
source of the sag. When I got back to the shop, I got out,
looked at the tires, and immediately slapped my forehead!
The rears were a little bit smaller than the fronts, just
enough to trigger TC under some conditions. Diagnosis
complete!
Sincerely,
Michael Barry Technician Quick Stop Smog & More Sacramento, California, USA
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