high idle at startup?
 

Do all of the modulars do this? When i crank up my e350 5.4, it revs to the moon for a second before it settles down. I have the tapping/knocking issue as well, which i haven't figured out yet, but if it's a bearing or something going, i'm always waiting on it to blow up when i crank it up and it revs high before the oil is circulated. I'm running mobil1 5w-20 but still.........

Depends on what you mean by "to the moon" They rev to maybe 1400 for about a second when they are started then depending on temp go down to 850 when warm.

Thx, I have no tach but it's on the list, it just seems to rev way more than necessary.

Most all EFI engines do this. Make sure you have a Motorcraft oil filter or you will starve the engine of oil on start-up.

Thx Lxman, I've had about 100 vehicles over the years, 3 or 4 Ford vans, and many efi, but none rev like this 5.4 at startup. I just wanted to make sure I wasn't alone.

Thx

Scotty if it helps my '00 E250 with the 5.4 does this same sort of thing, revs up just a moment or two before settling into its idle speed. Also don't have a tach but its not all that high, maybe the same RPM's as driving 10-15 mph down the street.

My first Ford modular motor was a new-to-me '97 E250 and the unique behavior was also new to me. I still thought there was a temp actuated choke, that during the colder months the RPM's should be higher on start up in order to warm the engine more quickly. :)

Not saying your experience doesn't count for a lot but the learning curve for me on the EFI motors with sophisticated computer controls and sensors is still quite high. Good to share knowledge here though----I've learned a lot so far!

Thx JWA, I really just want a tach I think. I hate not knowing things like actual rpms. Why would anyone build a car without one!

Scotty I'm with ya on the desire for a tach-----"just because........" if nothing else! I've been reading the thread about adding a F-Series cluster with a tach in our E vans and it seems somewhat easily done. Having already dismantled and successfully repaired a cluster its not such a mystery now. Adapting it to the existing wiring connections should be somewhat easy too----helps to have the Ford EVTM's handy.

Besides a factory tach in the cluster is so neat appearing and very unique too.