motor acts at at 1/3 throttle or more - The Ford Focus Forum

**DJuanHouston** · 10-20-2009, 11:24 AM

I forgot to add this seems only under load, i cant rev the TB by hand and produce the problem!!!

right now I can have no boost, be at 10 vac and if I hit about 1/3 TP a squeel starts and if i push past that the squeel goes away and it runs like the motor is shot and EGT goes up till it runs outta guage past 1600.

let off and everything goes back to normal.

this is a STOCK Powerworks 02 SVT no overboost everything has been fine it just freaked out on the freeway at 90 a few weeks ago.

now I cant take off faster than a big rig and sound like a ballon loosing air.

John

ps I havent changed the tune either, its had the same tune for a year or more

**DJuanHouston** · 10-20-2009, 02:43 PM

ok i took the valve cover off and spark plugs out

cyl 1-4 all clean inside but some oil in and around the spark plugs on the valve cover side as well as around the knock sensor actually mostly that whole side not the 2 plugs on the drivers side

cleaned and retorqued all and helped but i got the squeel at a higher TP on the short test drive ( no still no boosting) so it will prob start to get worse again

not sure if its the gasket or if pressure is built up somewhere, plastic gasket looks fine and no oil outside the valve cover, timing belt looks good but i dunno how to tell if it slipped a tooth spot.

anyone on what I have so far?

**DJuanHouston** · 10-20-2009, 02:48 PM

I wonder if the knock sensor causes a problem when I get past that point? it looks as if it would get oil on it because it is open into the cam area...

is it supposed to be full of oil? cause it was!!!

**pzev04boy** · 10-20-2009, 03:30 PM

The knock sensor is not located there. I believe you are looking at the vct solenoid. It's possibly leaking oil. Unbolt it and make sure it's not broken off in the head and that the o-ring is fine. Otherwise you need a new valve cover gasket.

**DJuanHouston** · 10-20-2009, 03:52 PM

yeah your right

its not broken off and the O ring was fine just wasnt sure how much oil it should be soaked in, it is open into the cam area where the oil gets around

other than the small oil transfer any idea on the squeeling then sputtering?

**FORDSVTPARTS** · 10-20-2009, 03:58 PM

Have you considered a compression test?

How does it run at idle and low speeds?

**springbuck** · 10-20-2009, 04:09 PM

Is the VCT solenoid any good? Mine did that when the solenoid went.

**pzev04boy** · 10-20-2009, 05:06 PM

Quote:

Originally Posted by springbuck

Is the VCT solenoid any good? Mine did that when the solenoid went.

If the solenoid was bad you would get a code for over/under advanced timing.

maybe a boost leak? Leak between the manifold and head? Belt slipping? Bypas valve not holding boost?

Also check compression.

**springbuck** · 10-20-2009, 05:18 PM

there was no codes when my vct solenoid crapped out.

**pzev04boy** · 10-20-2009, 05:24 PM

Quote:

Originally Posted by springbuck

there was no codes when my vct solenoid crapped out.

Strange. The computer monitors cam position and when it's not where it is supposed to be(bad solenoid or timing is off) it throws a code.

**DJuanHouston** · 10-20-2009, 05:42 PM

no codes only the P1000 that lives there

how would I know if the VCT went? car runs fine till I hit that certain place that all goes to hell

again its ruff like running outta fuel and egt climbs way past 1600 if i dont let off

then all returns to normal (this is all staying outta boost so unless its the internal blowoff)

**pzev04boy** · 10-20-2009, 06:08 PM

In tech you say you get normal 14-15 afr when in boost. I hope that was a typo because that is scary lean.

**Army19kSVT** · 10-20-2009, 06:46 PM

^^x2, AF should be should be 11s to mid 11s during WOT

**DJuanHouston** · 10-20-2009, 10:10 PM

yeah that was when I was typing mad, kinda like drunk dialing.....everything freaked out that first time on the freeway and AFR went to 10. I ment to type everything is fine AFR 14-15 outta boost but when this weird problem starts....EGT climbs but Im not going lean and if I go into boost numbers then I get AFR 10-12 but massive shuddering like an old heap ready to die....

its weird it was running great at 90 just below 4k rpm then sudden lack of power and freak out...because to keep in motion I had to put more throttle into it afr went 10 egt went 2k, boost went some crazy number that stock shouldnt read...

its like a govner or rev limiter but on throttle position

If any of you ride sport bikes hit your rev limiter, the stuttering and hesitation but imagine if you were getting it at half throttle and not 13k rpm.

**pzev04boy** · 10-21-2009, 11:06 AM

Oh, ok if you are 10.0 at wot, My guess is you are getting a missfire from running too rich because you have a boost leak. You are losing metered air so the computer is sending extra fuel to the engine that is not needed. I would change the o-rings for the pw manifold to cylinder head.

**DJuanHouston** · 10-21-2009, 02:56 PM

so you think this could be the cause when Im still outta boost at 10vac???

and damn where would I get those Im thinking they were a special shape,its been years since I put it al together :-(

**pzev04boy** · 10-22-2009, 07:37 PM

They used oem svt focus intake manifold o-rings with the kit. You can get them from ford. But yes it would also cause a vacuum leak at idle.

You can spray some carburetor cleaner by the flange while the car is idling. If it is a leak it will suck the spray in and you will notice a change in idle.

**DJuanHouston** · 10-22-2009, 09:57 PM

cool Ill try that and i was thinking

the VCT...when I exceed a certain point is when the car starts to spit and act up in or not in boost and EGT goes way up

if the VCT is not working correctly could it be throwing off the cams thus cause the spitting/EGT and all then when lift and get below the threshold its fouling at it starts to work again?

I ask cause after I had it out the other day it seemed to be a higher point in throttle position before all the shiznit started....

also is it supposed to be oil soaked? it has holes in it and was full of oil but seemed where it is placed it would have to be????(02 SVT not reg Zetec)

**pzev04boy** · 10-23-2009, 02:11 PM

Are you down on boost too?

**DJuanHouston** · 10-23-2009, 05:46 PM

no boost numbers are fine it just wont run in boost because the throttle position puts it into that spitting mode

tho I get a jolt of boost right at first pre spit mode

**pzev04boy** · 10-24-2009, 01:28 PM

A jolt?

**DJuanHouston** · 10-26-2009, 10:00 PM

yeah a jolt of boost then evrything gets fouled up till I back off the TP to less than the 1/3 ish throttle

thats why Im confised it drives fine unless I get past about 1/3 throttle

so TPS? VCT? tho the squeel suggest the O rings but why would the EGT go up if Im getting to rich...wouldnt it cool down?

**pzev04boy** · 10-27-2009, 12:51 AM

Quote:

Originally Posted by DJuanHouston

yeah a jolt of boost then evrything gets fouled up till I back off the TP to less than the 1/3 ish throttle

thats why Im confised it drives fine unless I get past about 1/3 throttle

so TPS? VCT? tho the squeel suggest the O rings but why would the EGT go up if Im getting to rich...wouldnt it cool down?

If you are dumping a lot of fuel to the point of a missfire you can see high egt's because the excess raw fuel will ignite in the exhaust.

**DJuanHouston** · 10-27-2009, 05:33 PM

Ah ok I thought i would here it like a poping but maybe not

so you think this is the orings holding to a point then air passes by

not like the VCT getting outta whack or something

**pzev04boy** · 10-27-2009, 06:15 PM

Quote:

Originally Posted by DJuanHouston

Ah ok I thought i would here it like a poping but maybe not

so you think this is the orings holding to a point then air passes by

not like the VCT getting outta whack or something

Well it's tough to say but in my experience when the vct goes out of whack you get codes. Also you say that you are only arround 10 in/hg vacuum and you then say your wideband pegs 10.0 at wide open throttle and you hear a screaching sound.

10-20-2009, 11:24 AM	#1 (permalink)
DJuanHouston Senior TEAM Member Join Date: Dec 2004 Location: Houston Posts: 1,574	motor acts at at 1/3 throttle or more I forgot to add this seems only under load, i cant rev the TB by hand and produce the problem!!! right now I can have no boost, be at 10 vac and if I hit about 1/3 TP a squeel starts and if i push past that the squeel goes away and it runs like the motor is shot and EGT goes up till it runs outta guage past 1600. let off and everything goes back to normal. this is a STOCK Powerworks 02 SVT no overboost everything has been fine it just freaked out on the freeway at 90 a few weeks ago. now I cant take off faster than a big rig and sound like a ballon loosing air. John ps I havent changed the tune either, its had the same tune for a year or more __________________ 02 CDSliver SVT ________________ Steeda Shfiter, VF mounts, Recaro Seats, Magnaflow CatBack, PWSC, Kenwood and JL Audio Last edited by DJuanHouston; 10-20-2009 at 11:38 AM. Reason: stupid memory is shot

10-20-2009, 02:43 PM	#2 (permalink)
DJuanHouston Senior TEAM Member Join Date: Dec 2004 Location: Houston Posts: 1,574	Re: motor acts at at 1/3 throttle or more ok i took the valve cover off and spark plugs out cyl 1-4 all clean inside but some oil in and around the spark plugs on the valve cover side as well as around the knock sensor actually mostly that whole side not the 2 plugs on the drivers side cleaned and retorqued all and helped but i got the squeel at a higher TP on the short test drive ( no still no boosting) so it will prob start to get worse again not sure if its the gasket or if pressure is built up somewhere, plastic gasket looks fine and no oil outside the valve cover, timing belt looks good but i dunno how to tell if it slipped a tooth spot. anyone on what I have so far? __________________ 02 CDSliver SVT ________________ Steeda Shfiter, VF mounts, Recaro Seats, Magnaflow CatBack, PWSC, Kenwood and JL Audio

10-20-2009, 02:48 PM	#3 (permalink)
DJuanHouston Senior TEAM Member Join Date: Dec 2004 Location: Houston Posts: 1,574	Re: motor acts at at 1/3 throttle or more I wonder if the knock sensor causes a problem when I get past that point? it looks as if it would get oil on it because it is open into the cam area... is it supposed to be full of oil? cause it was!!! __________________ 02 CDSliver SVT ________________ Steeda Shfiter, VF mounts, Recaro Seats, Magnaflow CatBack, PWSC, Kenwood and JL Audio

10-20-2009, 03:30 PM	#4 (permalink)
pzev04boy Senior TEAM Member Join Date: Sep 2004 Location: Round Lake, IL Posts: 3,191	Re: motor acts at at 1/3 throttle or more The knock sensor is not located there. I believe you are looking at the vct solenoid. It's possibly leaking oil. Unbolt it and make sure it's not broken off in the head and that the o-ring is fine. Otherwise you need a new valve cover gasket. __________________ 03 Zetec ATX E&S TURBO SYSTEMS powered sedan 00 Mustang Gt - Built motor - Soon to be Single turbo 07 Ninja 500R Building 640cc race motor.

10-20-2009, 03:52 PM	#5 (permalink)
DJuanHouston Senior TEAM Member Join Date: Dec 2004 Location: Houston Posts: 1,574	Re: motor acts at at 1/3 throttle or more yeah your right its not broken off and the O ring was fine just wasnt sure how much oil it should be soaked in, it is open into the cam area where the oil gets around other than the small oil transfer any idea on the squeeling then sputtering? __________________ 02 CDSliver SVT ________________ Steeda Shfiter, VF mounts, Recaro Seats, Magnaflow CatBack, PWSC, Kenwood and JL Audio

10-20-2009, 03:58 PM	#6 (permalink)
FORDSVTPARTS Premier Sponsor Join Date: Nov 2004 Location: Minnesota Posts: 8,236	Re: motor acts at at 1/3 throttle or more Have you considered a compression test? How does it run at idle and low speeds? __________________ To order from me just call 1-800-328-9552 and ask for Steve or use one of the methods below. Now accepting online orders here http://www.tousleyfordparts.com You can also find us here http://forums.focaljet.com/tousley-ford/ 2002 Silver SVT #2952 , custom CAI , Stage 2 throttle body, VF rear mount, FRPP 9mm wires, EAP/MACH HID's, Borla exhaust, K-W springs, FRPP UDP, Screamin Demon coil, Tuned by Mike at Unique Tuning in S.C.

10-20-2009, 04:09 PM	#7 (permalink)
springbuck TEAM Member Join Date: Feb 2004 Location: TX Posts: 137	Re: motor acts at at 1/3 throttle or more Is the VCT solenoid any good? Mine did that when the solenoid went. __________________ 03 CD SILV SVT + JRSC + BBK + STS +65mm FC TB + K&N drop-in filter.

10-20-2009, 05:18 PM	#9 (permalink)
springbuck TEAM Member Join Date: Feb 2004 Location: TX Posts: 137	Re: motor acts at at 1/3 throttle or more there was no codes when my vct solenoid crapped out. __________________ 03 CD SILV SVT + JRSC + BBK + STS +65mm FC TB + K&N drop-in filter.

10-20-2009, 05:42 PM	#11 (permalink)
DJuanHouston Senior TEAM Member Join Date: Dec 2004 Location: Houston Posts: 1,574	Re: motor acts at at 1/3 throttle or more no codes only the P1000 that lives there how would I know if the VCT went? car runs fine till I hit that certain place that all goes to hell again its ruff like running outta fuel and egt climbs way past 1600 if i dont let off then all returns to normal (this is all staying outta boost so unless its the internal blowoff) __________________ 02 CDSliver SVT ________________ Steeda Shfiter, VF mounts, Recaro Seats, Magnaflow CatBack, PWSC, Kenwood and JL Audio

10-20-2009, 06:08 PM	#12 (permalink)
pzev04boy Senior TEAM Member Join Date: Sep 2004 Location: Round Lake, IL Posts: 3,191	Re: motor acts at at 1/3 throttle or more In tech you say you get normal 14-15 afr when in boost. I hope that was a typo because that is scary lean. __________________ 03 Zetec ATX E&S TURBO SYSTEMS powered sedan 00 Mustang Gt - Built motor - Soon to be Single turbo 07 Ninja 500R Building 640cc race motor.

10-20-2009, 06:46 PM	#13 (permalink)
Army19kSVT TEAM Member Join Date: Mar 2008 Posts: 183	Re: motor acts at at 1/3 throttle or more ^^x2, AF should be should be 11s to mid 11s during WOT __________________ SSG J Turbo 02 Focus SVT...VVVRROOOOOOM PSSSSSSSHHHHHH

10-20-2009, 10:10 PM	#14 (permalink)
DJuanHouston Senior TEAM Member Join Date: Dec 2004 Location: Houston Posts: 1,574	Re: motor acts at at 1/3 throttle or more yeah that was when I was typing mad, kinda like drunk dialing.....everything freaked out that first time on the freeway and AFR went to 10. I ment to type everything is fine AFR 14-15 outta boost but when this weird problem starts....EGT climbs but Im not going lean and if I go into boost numbers then I get AFR 10-12 but massive shuddering like an old heap ready to die.... its weird it was running great at 90 just below 4k rpm then sudden lack of power and freak out...because to keep in motion I had to put more throttle into it afr went 10 egt went 2k, boost went some crazy number that stock shouldnt read... its like a govner or rev limiter but on throttle position If any of you ride sport bikes hit your rev limiter, the stuttering and hesitation but imagine if you were getting it at half throttle and not 13k rpm. __________________ 02 CDSliver SVT ________________ Steeda Shfiter, VF mounts, Recaro Seats, Magnaflow CatBack, PWSC, Kenwood and JL Audio

10-21-2009, 11:06 AM	#15 (permalink)
pzev04boy Senior TEAM Member Join Date: Sep 2004 Location: Round Lake, IL Posts: 3,191	Re: motor acts at at 1/3 throttle or more Oh, ok if you are 10.0 at wot, My guess is you are getting a missfire from running too rich because you have a boost leak. You are losing metered air so the computer is sending extra fuel to the engine that is not needed. I would change the o-rings for the pw manifold to cylinder head. __________________ 03 Zetec ATX E&S TURBO SYSTEMS powered sedan 00 Mustang Gt - Built motor - Soon to be Single turbo 07 Ninja 500R Building 640cc race motor.

10-21-2009, 02:56 PM	#16 (permalink)
DJuanHouston Senior TEAM Member Join Date: Dec 2004 Location: Houston Posts: 1,574	Re: motor acts at at 1/3 throttle or more so you think this could be the cause when Im still outta boost at 10vac??? and damn where would I get those Im thinking they were a special shape,its been years since I put it al together :-( __________________ 02 CDSliver SVT ________________ Steeda Shfiter, VF mounts, Recaro Seats, Magnaflow CatBack, PWSC, Kenwood and JL Audio

10-22-2009, 07:37 PM	#17 (permalink)
pzev04boy Senior TEAM Member Join Date: Sep 2004 Location: Round Lake, IL Posts: 3,191	Re: motor acts at at 1/3 throttle or more They used oem svt focus intake manifold o-rings with the kit. You can get them from ford. But yes it would also cause a vacuum leak at idle. You can spray some carburetor cleaner by the flange while the car is idling. If it is a leak it will suck the spray in and you will notice a change in idle. __________________ 03 Zetec ATX E&S TURBO SYSTEMS powered sedan 00 Mustang Gt - Built motor - Soon to be Single turbo 07 Ninja 500R Building 640cc race motor.

10-22-2009, 09:57 PM	#18 (permalink)
DJuanHouston Senior TEAM Member Join Date: Dec 2004 Location: Houston Posts: 1,574	Re: motor acts at at 1/3 throttle or more cool Ill try that and i was thinking the VCT...when I exceed a certain point is when the car starts to spit and act up in or not in boost and EGT goes way up if the VCT is not working correctly could it be throwing off the cams thus cause the spitting/EGT and all then when lift and get below the threshold its fouling at it starts to work again? I ask cause after I had it out the other day it seemed to be a higher point in throttle position before all the shiznit started.... also is it supposed to be oil soaked? it has holes in it and was full of oil but seemed where it is placed it would have to be????(02 SVT not reg Zetec) __________________ 02 CDSliver SVT ________________ Steeda Shfiter, VF mounts, Recaro Seats, Magnaflow CatBack, PWSC, Kenwood and JL Audio

10-23-2009, 02:11 PM	#19 (permalink)
pzev04boy Senior TEAM Member Join Date: Sep 2004 Location: Round Lake, IL Posts: 3,191	Re: motor acts at at 1/3 throttle or more Are you down on boost too? __________________ 03 Zetec ATX E&S TURBO SYSTEMS powered sedan 00 Mustang Gt - Built motor - Soon to be Single turbo 07 Ninja 500R Building 640cc race motor.

10-23-2009, 05:46 PM	#20 (permalink)
DJuanHouston Senior TEAM Member Join Date: Dec 2004 Location: Houston Posts: 1,574	Re: motor acts at at 1/3 throttle or more no boost numbers are fine it just wont run in boost because the throttle position puts it into that spitting mode tho I get a jolt of boost right at first pre spit mode __________________ 02 CDSliver SVT ________________ Steeda Shfiter, VF mounts, Recaro Seats, Magnaflow CatBack, PWSC, Kenwood and JL Audio

10-24-2009, 01:28 PM	#21 (permalink)
pzev04boy Senior TEAM Member Join Date: Sep 2004 Location: Round Lake, IL Posts: 3,191	Re: motor acts at at 1/3 throttle or more A jolt? __________________ 03 Zetec ATX E&S TURBO SYSTEMS powered sedan 00 Mustang Gt - Built motor - Soon to be Single turbo 07 Ninja 500R Building 640cc race motor.

10-26-2009, 10:00 PM	#22 (permalink)
DJuanHouston Senior TEAM Member Join Date: Dec 2004 Location: Houston Posts: 1,574	Re: motor acts at at 1/3 throttle or more yeah a jolt of boost then evrything gets fouled up till I back off the TP to less than the 1/3 ish throttle thats why Im confised it drives fine unless I get past about 1/3 throttle so TPS? VCT? tho the squeel suggest the O rings but why would the EGT go up if Im getting to rich...wouldnt it cool down? __________________ 02 CDSliver SVT ________________ Steeda Shfiter, VF mounts, Recaro Seats, Magnaflow CatBack, PWSC, Kenwood and JL Audio

10-27-2009, 05:33 PM	#24 (permalink)
DJuanHouston Senior TEAM Member Join Date: Dec 2004 Location: Houston Posts: 1,574	Re: motor acts at at 1/3 throttle or more Ah ok I thought i would here it like a poping but maybe not so you think this is the orings holding to a point then air passes by not like the VCT getting outta whack or something __________________ 02 CDSliver SVT ________________ Steeda Shfiter, VF mounts, Recaro Seats, Magnaflow CatBack, PWSC, Kenwood and JL Audio

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