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Thread: 2004 SVT 2.3 Power Loss Reply to Thread
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Topic Review (Newest First)
01-30-2013 07:50 PM
GreySkorpion codes can be found here, and at the top of almost every sub-forum (you are in General Technical chat ) there is a list of informative articles, here is the link to dtc's: http://www.focusfanatics.com/forum/showthread.php?t=174739
01-30-2013 07:47 PM
GreySkorpion Transmission solenoids are tricky, I have heard of them throwing codes and not throwing codes.

Here is the link to odometer test mode: http://www.focushacks.com/mod/Instru...ster_Test_Mode
01-30-2013 11:39 AM
GaryT Oh and my mechanic didn't say he put 2 new solonoids on the intake, he said he replaced the vacuum lines going to them because one was broken so he replaced both hoses.

As for the transmission valve body solonoids, I assume they don't throw codes if they malfunction?
01-30-2013 11:25 AM
GaryT How embarrassing...I can't even remember what model car I have long enough to walk from the parking garage back to my office It's a ZTS...definitely a ZTS. A sage green 2004 4 door sedan with the 2.3 PZEV engine. The only thing I have tried is disconnecting the two vacuum hoses going to the two solonoids on the intake manifold to see what affect it had on the engine when it was idling. I will try swapping them tonight when I get home from work and see if it makes a difference.

As for checking codes using the odometer, I would like to know how it works but I do not have a decoder, do you need one to do it?
01-30-2013 09:36 AM
GreySkorpion Also as stated, one or more of the six valve body solenoids in the transmission may be mal-functioning. I would also run it by a auto parts store and run a code scan on it, even though there is no check engine light, it may come up with a code. Another quick check of codes is with the odometer, let me know if you want help figuring out how to use the odometer as a information tool.
01-30-2013 09:34 AM
GreySkorpion I'm an old man also, but there is no such thing as a ZXT either. Is it a hatchback? a 4 door? Then its a ZX5, a 3 door hatch? Then its a ZX3. Okay, like I said, my car did the same thing, and all I did was switch the 2 solenoids on top of the black intake manifold. Have you tried that? I wouldnt trust the mechanic that claims he put 2 new ones on there. Please give it a try, only takes 2 minutes, tops.
01-30-2013 08:53 AM
GaryT Oh geez...O.K. cut me some slack guys, I'm an old man! At least I got 1 of the 3 letters and the color right...LOL! It's a ZXT and I honestlyy didn't mean to misidentify the car but I always associate the "S" with "sedan" and that's how I get off track. Anyway, I climbed aboard this morning at 5:00AM, fired up the faithful focus and started for work. Operating temperature at normal start and steady acceleration, the flat spot, hesitation and surging are gone and the transmission shifts exactly like it always has so at a minimum, replacement of the broken vacuum hose took care of that problem. I leveled off at around 50 to 55 and immediately felt the bucking and slight roughness that the car has had since new at this speed then it doesn't do it again the rest of the day unless the engine cools completely off. If I don't back off the accelerator and continue to slowly increase speed then it doesn't protest but continues to smoothly accelerate. Right after I got the car I found out that all of the 2.3 PZEV Focuses experienced the one time shuttering and roughness at around 45 to 55 so I didn't worry about it however it does feel like it may be a little more pronounced within the last 2 weeks. Now, here's what feels different...pulling onto the interstate at about 20 or so with the transmission already in 2nd or 3rd gear and kicking it down to 1st, the RPM's are there but the engine feels like its holding back until it shifts into 2nd then it launches like a rocket, shifts to 3rd and hits 65 in a heartbeat. I don't know, maybe the RPM's are already too high when the dowshift to 1st occurs but it didn't seem to be that way until recently...maybe a good starting place would be to disconnect the battery and let the ECU reset and see if that makes a difference. Also, passing speed seems weak, like running at around 60 to 65 and putting my foot in it, it kicks down like it should but the increase in speed seems sluggish. I pulled the vacuum hoses off of the sensors located on the front of the intake manifold one at the time to see what the affect would be. These are also the ones that the mechanic replaced. The one furtherest to the right side of the car seems to affect something in the top of the engine or in the intake manifold that makes a tapping noise, it quietens down when disconnected. Disconnecting the one to the left and closest to the throttle body causes a drop in RPM's at an idle and also causes a tapping noise in the top end of the engine or in the intake manifold. do these vacuum controlled sensors operate the butterfly valves located in the intake manifold? Thanks in advance for the help and again, I apologize for misidentifying my car.
01-30-2013 12:40 AM
ZXthrizzle05 I have an svt rear does that make me an svt!!!
01-30-2013 12:33 AM
GreySkorpion
Quote:
Originally Posted by tukaniSVT View Post
The 2.3 engine is definitely a rare breed.

And to tell you the truth, dealerships that had them back in 04, actually told people that it was an SVT Focus replacement "Or upgrade".

Shame on them.

Anyways, this sounds like a tranny issue to me.

Ray
Well hot dam, I got an SVT!!!!!
01-30-2013 12:32 AM
GreySkorpion
Quote:
Originally Posted by swansong View Post
Rudel's car is pretty close, just CD silver instead of green.
Haha, you can't compare this guys knowledge with Rudels and his knowledge and build. The OP has one post......
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