powbmps Posted August 24, 2004 Share Posted August 24, 2004 I have experienced this several times, the most recent time being this morning while I was waiting at a tollbooth. It is most noticeable in stop and go traffic. I give the car just enough gas to get moving, take my foot off the gas and before I push the clutch back in, the motor will continue to rev up to between 2000 and 2500 rpm's and the car lurches forward. If I don't get right on the clutch and brake I run the risk of rear ending the car in front of me. I mentioned it to the dealer this afternoon while I was getting my oil changed. The tech told me that he just came back from some Subaru event where he heard of the problem. He said that there is some sort of speed sensor associated with the sunroof. He suggested that I keep my sunroof closed when in stop and go traffic to see if that solved the problem. :o (where is the WTF! emoticon?) My guess would have been something to do with the drive by wire throttle. Chris S. Link to comment Share on other sites More sharing options...
mccorry Posted August 24, 2004 Share Posted August 24, 2004 [img]http://www.columbusracing.com/ubb/graemlins/wtf.gif[/img] [img]http://www.columbusracing.com/ubb/graemlins/slap.gif[/img] [img]http://www.columbusracing.com/ubb/graemlins/nonono.gif[/img] Link to comment Share on other sites More sharing options...
axis008 Posted August 24, 2004 Share Posted August 24, 2004 Weird. Tell us how it is when you have your sunroof closed. -ben Link to comment Share on other sites More sharing options...
powbmps Posted August 24, 2004 Author Share Posted August 24, 2004 Well so far it's a little less windy :) All those added sensors must be what makes the limited so much more expensive. Link to comment Share on other sites More sharing options...
agctr Posted August 24, 2004 Share Posted August 24, 2004 That would have to be the most bizarre thing I have ever heard, im sure there is a lot more too it than those comments. Let us know how it goes. Adam. Link to comment Share on other sites More sharing options...
SUBE555 Posted August 24, 2004 Share Posted August 24, 2004 I've never had a problem. Sunroof, that sounds like the oddest thing I've ever heard I think! I know the pedal gap isn't the widest and hitting the brake you can inadvertently grab the gas a little at the same time, but if the clutch is in and you are detatched from the drivetrain, there should be zero movement if you are at stop or other than braking/coasting movement. This just sounds way too bizzare! Link to comment Share on other sites More sharing options...
TAckhouse1 Posted August 24, 2004 Share Posted August 24, 2004 [quote name='SUBE555']I've never had a problem. Sunroof, that sounds like the oddest thing I've ever heard I think! I know the pedal gap isn't the widest and hitting the brake you can inadvertently grab the gas a little at the same time, but if the clutch is in and you are detatched from the drivetrain, there should be zero movement if you are at stop or other than braking/coasting movement. This just sounds way too bizzare![/quote] man i don't know, that sunroof thing sounds crazy to me. I would agree on the pedal gap thing. When driving a buddies old truck, the same thing would happen from time to time. It was my size 14's catching the edge of the gas pedal along with the brake. -Nick Link to comment Share on other sites More sharing options...
agctr Posted August 24, 2004 Share Posted August 24, 2004 LOL @ Nick, very well done....... Maybe if u tried fixing it with a left hand screwdriver only, that seems to work most of the time. Adam. Link to comment Share on other sites More sharing options...
firedawgs Posted August 24, 2004 Share Posted August 24, 2004 I agree wierd stuff. I can't not associate the sunroof affecting the speed sensor for the clutch. And, why would the clutch be over thrown from you manual depressing it. I wonder if anyone with a automatic has had the problem. Updated my vBGarage: Link to comment Share on other sites More sharing options...
wunderkind Posted August 24, 2004 Share Posted August 24, 2004 Could be the alignment of the Venus with the Pleiades Cluster that caused a surge of magnetic pulse off the sun in turn affected your subie. Link to comment Share on other sites More sharing options...
Bruno1453 Posted August 24, 2004 Share Posted August 24, 2004 I agree about the pedal spacing. Makes me nervous about driving with winter boots on. Link to comment Share on other sites More sharing options...
yankees25 Posted August 24, 2004 Share Posted August 24, 2004 I've had the same problem on my old Contour SVT (as have other Contour owners). In our case, it was generally the IAC valve and Thottle Body needed cleaning. The IAC valves would gunk up and get stuck. It would get progressively worse over time (car would rev up to 4000-4500 RPMs - yikes!). Makes you look kinda silly when you are trying to inch along in traffic and your engine is revving like a mad mouse. Link to comment Share on other sites More sharing options...
SUBE555 Posted August 24, 2004 Share Posted August 24, 2004 Bruno, I personally wouldn't do it unless you have particularly small feet. Wouldn't work with 13's for me. Especially my Icemans! Yankee, they shouldn't be gunked up already! Link to comment Share on other sites More sharing options...
squirrel-bait Posted August 24, 2004 Share Posted August 24, 2004 A speed sensor associated with the sunroof? Errr... I got it! It must be for the ejector seat option. 9-way power seats. :lol: sqrl b8 Link to comment Share on other sites More sharing options...
Max Capacity Posted August 24, 2004 Share Posted August 24, 2004 Some wierd stuff can happen with the way the cars are wired. The dome light fuse burned out in my 1993 Civic and the intermittent wipers would not work. What do the intermittent wipers have to do with the dome light ? 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it.  Engine Build - Click Here Link to comment Share on other sites More sharing options...
Ludicrous Speed Posted August 24, 2004 Share Posted August 24, 2004 Heh, even wierder - my first car was the much sought after '83 Buick Skylark Custom (with optional multi colored body panels and authentic fake wood trim...and a sliding bench seat). Anyway, I was driving through DC one night and hit a pothole. The radio went out. I later went to the post office that night and discovered the dome light was gone. My gf at the time tried to let me know I forgot an envelope, but she mentioned my horn was out too. Now that's some funky wiring. Link to comment Share on other sites More sharing options...
Guest *Jedimaster* Posted August 24, 2004 Share Posted August 24, 2004 Maybe they accidentally installed a hill holder clutch in your car? Link to comment Share on other sites More sharing options...
gtguy Posted August 24, 2004 Share Posted August 24, 2004 [quote name='powbmps']I have experienced this several times, the most recent time being this morning while I was waiting at a tollbooth. It is most noticeable in stop and go traffic. I give the car just enough gas to get moving, take my foot off the gas and before I push the clutch back in, the motor will continue to rev up to between 2000 and 2500 rpm's and the car lurches forward. If I don't get right on the clutch and brake I run the risk of rear ending the car in front of me. I mentioned it to the dealer this afternoon while I was getting my oil changed. The tech told me that he just came back from some Subaru event where he heard of the problem. He said that there is some sort of speed sensor associated with the sunroof. He suggested that I keep my sunroof closed when in stop and go traffic to see if that solved the problem. :o (where is the WTF! emoticon?) My guess would have been something to do with the drive by wire throttle. Chris S.[/quote] The sunroof suggestion seems absurd. My MT car doesn't have that surging, for the record, and I have been in stop and go traffic (unfortunately). My oddest electrical experience, such as it was, was hitting a road construction lip so hard (in my WRX wagon) that all the lights on the dash came on, and the car shut off. I re-started the car and drove home. All was fine, but boy, it was weird. :lol: Kevin Link to comment Share on other sites More sharing options...
bmc Posted August 24, 2004 Share Posted August 24, 2004 I believe I have experienced this also. This is how I can describe it. When stopped and trying to inch the car forward (only pressing gas slightly), you take your foot off the gas the car still holds the same throttle position for a second. It's noticable engouh to make you think "What the !?" before it stops. The best reason I could figure for this was that the ECU didn't want the car to stall so it kept a little throttle or there may be some kind of "stall prevention" there. But I'm no expert... Link to comment Share on other sites More sharing options...
wunderkind Posted August 24, 2004 Share Posted August 24, 2004 Don't you hate it when cars begin to think for you? Link to comment Share on other sites More sharing options...
Deer Killer Posted August 24, 2004 Share Posted August 24, 2004 I don't believe there is stall protection.. I stalled it once or twice the first few days I had mine... Link to comment Share on other sites More sharing options...
powbmps Posted August 24, 2004 Author Share Posted August 24, 2004 bmc, That sounds like the same thing. I guess I wasn't as clear as I could have been. The rpms rise and the car surges forward during the brief time before I push the clutch in. The revs drop once the clutch is in. I have to say that I'm pretty annoyed with the response they gave me. It makes me lose faith in the service department. The tech was trying to tell me that there is a speed sensor that prevents the sunroof from opening above certain speeds to keep it from 'ripping off'. That would be pretty tough considering the sunroof retracts into the roof. More than likely there is a pedal position sensor or something that is not reading quite right. Chris S. Link to comment Share on other sites More sharing options...
bolbo Posted August 24, 2004 Share Posted August 24, 2004 First, even if the sunroom was the culprit (it's not), why the heck should you be relegated to driving the car without use of the sunroof while in stop/go traffic. It's absurd. So, even if it 'is' the problem...it's a problem that Subaru should fix - not one that you should acclimate yourself to. Second, I would call the dealer again and ask for someone to suggest a more reasonable cause and then, possible solution. If they fail to, I would ask for a way for you to be put in contact with Subaru proper. Your dealer's response was rather dismissive, meaning that they prefer to not get involved until they have to. Otherwise, he would have told you (based on the Subaru meeting) that you should bring your car in and have some sensors checked out. He may have been nice...but it appears he was in no hurry to be as helpful as he could have been. If it 'is' a safety issue, from your perspective, I suggest that you forward that concern on to them because (as you could state) you would hold Subaru liable for any accident caused by the 'auto-revving'. At least ask them to put your concern in writing so if you do have an 'event' related accident - it's documented. Have you kept your sunroof closed and continued to have symptoms? Once (when) that is eliminated, it's time to have them take your concern more seriously...or take it to Subaru. I assure you that they do not want to be liable for any such surge that caused an accident. Lawsuits, recalls, etc. etc..., they 'will' take care of you if they are apprised of your situation. Link to comment Share on other sites More sharing options...
Dr. Zevil Posted August 24, 2004 Share Posted August 24, 2004 Moved to "warranty issues & problems" Link to comment Share on other sites More sharing options...
firedawgs Posted August 25, 2004 Share Posted August 25, 2004 they are tied into the same fuse, that what Updated my vBGarage: Link to comment Share on other sites More sharing options...
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