SC Thunderbird

ROYAL PARTS · 10-02-2001, 01:59 PM

the car is a Thunderbird SC 1992 with 30000 miles on it
when the car is cold and until it gets a little bit warm the engine runs fine even at full boost (9-10 psi)
by the time the engine is fully warm and at operating temperature, whenever the engine is reved there is load and there is boost, the engine knocks badly
if thhere is no load, or boost, it doesn't knock
there is no check engine code, spark plugs are the right ones
it looks like the timming is too much for some reason
all the OTC tests were run with no errors
the DIS module , spark plugs, fuel pump, fuel filter, cam sensors were replaced and the injectors were cleaned.
i would appreciate any help.

PKRWUD · 10-02-2001, 02:47 PM

What octane fuel are you running? Your engine has a knock sensor, which could be bad. Have you run a KOER self test?

Take care
~Chris

------------------
Retired Moderator
MustangNet

My site: JimPorterRacing

RACECAR spelled backwards is RACECAR

HEY !!! Are you ASE Certified ??? If you are, ask me about iATN. The best tool you'll ever have, and it's free !!!

10-02-2001, 11:16 PM

Sounds like you are running 87 octane in that sc'd motor. Try running 92-94 octane.

10-02-2001, 01:59 PM	#1
ROYAL PARTS Registered Member Join Date: Oct 2001 Location: venezuela Posts: 1	SC Thunderbird the car is a Thunderbird SC 1992 with 30000 miles on it when the car is cold and until it gets a little bit warm the engine runs fine even at full boost (9-10 psi) by the time the engine is fully warm and at operating temperature, whenever the engine is reved there is load and there is boost, the engine knocks badly if thhere is no load, or boost, it doesn't knock there is no check engine code, spark plugs are the right ones it looks like the timming is too much for some reason all the OTC tests were run with no errors the DIS module , spark plugs, fuel pump, fuel filter, cam sensors were replaced and the injectors were cleaned. i would appreciate any help.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Thunderbird roots blower on 5.0	Dark_5.0	Power Adders	4	04-01-2004 08:56 PM
3.8 thunderbird SC supercharger.	ImportKiller	Power Adders	1	08-20-2003 02:47 PM
Ford Thunderbird Sc Concept	mustangman65_79	Blue Oval Lounge	2	03-09-2003 10:55 PM
97' Thunderbird 4.6L question	JM90GT	Windsor Power	8	12-12-2001 01:26 PM

10-02-2001, 02:47 PM	#2
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	What octane fuel are you running? Your engine has a knock sensor, which could be bad. Have you run a KOER self test? Take care ~Chris ------------------ Retired Moderator MustangNet My site: JimPorterRacing RACECAR spelled backwards is RACECAR HEY !!! Are you ASE Certified ??? If you are, ask me about iATN. The best tool you'll ever have, and it's free !!!

10-02-2001, 11:16 PM	#3
rbatson Guest Posts: n/a	Sounds like you are running 87 octane in that sc'd motor. Try running 92-94 octane.