syclone problems

sychris

sychris

Member
ok i got truck 6 mo ago and it never ran right . the intercooler pump wasnt workin at all so i got new one but the truck still dont run right . it will run great when i let it warm up in the morning and that first 10 min it has good power and boost but when it warms up i cant go over 3000 rpms or it will scream like a teapot from near throttle body . it will also do this in park if you rev it to 3000 it sounds like its coming from egr or throttle body when im under hood .when you are driving you dont even have to get on it you can gradually go to 3000 rpms and it will start screamin and it looses power and hesitates . ive checked every hose i cant find leak or damage . i know someone who will look at for me but i want to check everything i can before he looks at it . is there any shops that have worked on sytys near NJ .
 
Quickstop [UK]

Quickstop [UK]

Combating adversyty.
Re: syclone problems

Sounds like you have it pretty well isolated in terms of location - sorry to hear the troubles. How do you know your lines are good and you don't have a defective valve/ vac system?

If the IC hoses are not damaged and are clamped FIRMLY (I say this because it is possible that they are firm to the touch but under boost pressure they sound like a wazoo/vuvuzela) then like you say, you have a big leak coming from one of the possible locations. Have you taken off the IC hose to make sure it doesn't have a big tear in it?

You have the EGR, throttle body gasket and the upper intake gasket in that area as well as the vac lines. The throttle body is easy to remove and the gasket is only a few bucks - you'll need to search for availability though.

As for the EGR, you'd have to have that defective and stuck open - maybe the solenoid is bad but then it doesn't account for the screaming. Try disconnecting it from the solenoid located next to the coil. I doubt it is the EGR - at idle they are very obvious if they are bad but when the truck is running it has the opposite effect.

Next possibility is the upper intake gasket screaming at you from the intake plenum to the lower intake. I guess you could remove it and replace it - if there is a leak that only shows up under pressure, the old soapy water trick may or may not work.

Those are a couple of ideas.... HTH
 
Flyin Ryan

Flyin Ryan

hated cuz he drives fords
Re: syclone problems

If it was a vacuum leak i'd think it would effect idle at any temperature.

Did you check and recheck the coupler that connects the upper ic to the throttle body?
 
Bullit4300

Bullit4300

New member
Re: syclone problems

I am having the same problem with mine been pulling my hair outta my head trying to find it that sound is REALLY annoying so I took soapy water one day like the guys here say to and Bingo! I found the sound lower intake for sure in the process now of changing the lower intake gaskets and the ones following upwards good luck to you hopefully its something a bit simpler. But if its not I am afraid you have the same problem I do btw does anyone know what the torque sequence and specs are on the intake manifold , plenum and TB??
 
jharrison

jharrison

New member
Re: syclone problems

According to my Syclone Service Manual Supplement:
It doesn't give me a sequence for the lower, but it says to torque the bolts and studs to 47Nm (35 ft.lbs)
The upper intake or plenum: Start from the two middle bolts outward on each side, and torque to 24Nm (18 ft.lbs)
Throttle body bolts, also 24Nm (18 ft.lbs)
 
S

Syclone22

Member
Re: syclone problems

Check your turbo inlet if there is any traces of
oil and also your sparkplugs which color they are do
a basic cylinder compression check !! :tup:
 
Bullit4300

Bullit4300

New member
Re: syclone problems

jharrison said:
According to my Syclone Service Manual Supplement:
It doesn't give me a sequence for the lower, but it says to torque the bolts and studs to 47Nm (35 ft.lbs)
The upper intake or plenum: Start from the two middle bolts outward on each side, and torque to 24Nm (18 ft.lbs)
Throttle body bolts, also 24Nm (18 ft.lbs)
Click to expand...

Thanks man great help I really need one of those service manuals could save me alot of trouble one day thnx again for the help :D
 
Norm

Norm

Donating Member
Re: syclone problems

Bullit4300 said:
Thanks man great help I really need one of those service manuals could save me alot of trouble one day thnx again for the help :D
Click to expand...

I have a manual if you need to borrow it or just for some info, stop in. I haven't seen you cruising yet.
 
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