GTI 337/20th Anniversary :: Temporary Power Loss On Highway
Dec 10, 2015
So over the past couple months when driving on the highway I would notice that sometimes my car would lose all power and slowly coast to a stop, but then the power comes back on and I'm off after a few seconds. It happened again today and I notice when I do hit the gas when it decides not to accelerate my boost gauge shows that there is vacuum building up in the engine. It just doesn't make sense to me. Would my car be getting thrown into a limp mode? Or is it something to do with fueling?
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About three nights ago I had a complete power loss on the highway and the car began to bog down alot under throttle (and surge at points as well although with no boost). It also idled very rough/erratically. When I unplugged the MAF it cleared up right away; Idle was smooth and it ran without hiccup but in safe/limp mode so very tame (again, without boost really, gauge shows it stays in Vacuum and never passes "0" or goes into boost).
I scanned it this evening and got 2 misfire codes and a MAF code, along with a code related to traction control which I noticed had activated as a result of this and could not be turned on (by activated, I mean the light came on, disengaging T/C). These things make me think it is MAF related, especially because I have bolt down Hitachi coil packs so I do not think that is what it could be in relation to the misfire codes (which I think may be old and needed to be cleared).
Fast forward to last night: I can pretty confidently say my MAF is not the problem and I think I saved an unnecessary expenditure. I was able to meet a friend with a 337 as well and his MAF did not change my car at all and my MAF ran fine in his car so I think my problems are something else. Although with the MAF plugged in my car runs very poor and unplugged it clears up and just runs "limp" (no boost and slow but stable) from what I tested this evening the MAF unit seems to not be the issue.
I think there must be a vacuum leak of some sort between the MAF and the engine which allows more air in than the MAF signals when plugged in which causes the issue. Also, I know a common thing to think is "coilpacks" but I have bolt down Hitachi coil packs so I would imagine that would eliminate those from being the failure they tend to normally be. Agreed ??
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I have a 03 20th ae gti with about 84k just replaced the coil packs. driving on the freeway then power just goes away, press on gas and nothing. limp it off the freeway. Then it starts to die at idle and hardly turns over. car is pretty much stock. new clutch at 75k.
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I live in NM. It's been excessively hot here this summer, 95+ daily for the past 2 months.
Yesterday while I was driving I noticed a weird feel in the accelerator pedal. Almost like a mini-misfire. It was intermittent. Maybe did it 6 or so times in a 10 minute time span. My wife couldn't feel it in the passenger seat but I definitely felt it through the pedal. There was no MIL light during or after the incident.
We get home, she gets out on the passenger side and there was a strong fuel smell (tank, filler, and filter are on that side). By the time I got the car up in the air and the rear passenger tire off and fender liner out the smell had dissipated (probably evaporated due to the high temperature). There were no noticeable leaks. No dripping. Before I had it in the air I definitely smelled fuel underneath the car around the rear passenger side. I opened the hood and didn't smell or see anything in the engine bay.
I called VW customer care and they informed me this recall of the fuel tank ventilation valve was performed back in 2009 but the symptoms explained in the recall are exactly what I experienced. I verified the recall was done using my VIN number search on NHTSA's Safer Car site.
I can imagine that although the recall was done 7 years ago, it's still possible for this ventilation valve to fail. Especially because the recall states high ambient temps are a factor.
I have a legit VCDS but have not scanned it yet. Wife is off today so I took her car. I plan to go home, scan the car, and try to reproduce the issue before taking the fender liner out again. I have the means to do my own work but if I have to do something like drop the fuel tank I'll probably take it in.
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I have a 2013 F150 with a 3.5 Ecoboost. I was pulling my 16' aluminum boat on a two lane road and pulled out to pass another truck. I stomped on the accelerator and the motor lost power. I limped back into my lane and noticed the engine light blinking. If I had to describe it, it seemed like the motor was running in some sort of "limp mode."
After about a minute or so, I let up on the accelerator and the light stopped blinking where the motor began to run normally. Although I only "stomped" on accelerator once since I had the issue, I haven't had the problem since. The truck has 44k on it..
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2001 V10 160000 miles.
1st happened Wednesday on way back. Temps all fine but had been in stop and go traffic earlier. Truck was on cruise and felt like fuel cut. I disengaged cruise. Throttle would keep it running and within 5-10 seconds it caught and ran fine.
Connected and reconnected all injectors, coil connections, tb and MAF connections. Nothing noted loose. No codes on OBD reader.
Drove around town last couple days no issues. Today towing three dirt-bikes about 45 miles. towards the end of the 45 miles. she stumbled as we crossed an intersection. Then caught and ran fine. Did it twice on way back home towards the end of the trip.
Had OBD reader in gauge mode with ignition advance, tp sensor, voltage and gallons per hour showing. None seemed to change when it stumbled.
Fuel pump is about 2 years old. Coils maybe 4 or 5 years old. Aftermarket. No codes on OBDII reader.
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I was driving the other day and accelerated in 5th and the car stuttered before finally going- I got the flashing CEL. I figured that the car was misfiring and that a coilpack change was the culprit. All my coilpacks are fine and the sparkplugs look good as well. CEL hasn't come back, but the car just feels like it doesn't want to go right away when if i give it some gas when I'm going about 55-65 MPH.
Other guesses would be there is a fuel cut somewhere and that may be causing it?
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Noticed a loss in fuel economy after a CAI install??
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I've had the car about 3 months now. It runs fine, never overheats, but I keep having to add coolant (every 2 weeks or so), but I can't see a leak anywhere.
I searched and found one guy that said it could be a bad expansion tank cap, and another that said it could be a tiny leak that only leaks when driving.
Anyway, when replacing my axle, I noticed this:
If that's dried coolant, where would that be from?
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For the past few weeks I have had a bizarre issue with my 2010 Sonata GLS. If you unlock all doors (press the FOB unlock button twice), get in, close the door and then turn the key and attempt to start the car, all power is lost to the the interior and with no lights, radio etc. The car is literally dead and won't start. If I open the drivers side door and then close it again, all power comes back and I can start the car. All radio stored stations are lost, the clock is reset and usually the trip odometer is reset too. Other times, if I just press the FOB unlock once to unlock just the drivers side door, the issue does not apparently seem to happen. What the issue may be?
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I have a 2003 20th anniversary edition GTI. Yesterday I noticed my car started shaking when I was driving on the highway. The only thing I can think of that I did was run into a snow bank during the snowstorm. What is causing my car to shake?
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50k Miles on my clutch. Was driving a couple weeks ago on the highway and clutch stuck to the floor. At first I thought it was my Slave cylinder. Got the trans out this weekend to find the mess (below) inside my bell housing. Obviously need a new clutch now and will still replace the slave while I am in there.
Cars setup is around 375ish whp. I know I could spend 1300 bucks and call it a day for a clutch master or south bend but was seeing if there is a cheaper alternative.
Also If I were to buy an OEM clutch or an upgraded one that was not rated for up to 400~whp would it drive and pull the same as a fully upgraded one just not last as long?
6 Speed ...
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Having issues with turning over but no start, sometimes takes up to five turns to start up, and hesitation on hwy in 6th gear. Fuel problem im pretty sure.
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So driving on the highway my car died. It would crank but not start. Got it towed. This is what I have done to troubleshoot.
1. Swap ECUs. The car should start for a second and shut off because the car doesnt match with the ECU. Still just crank and no start.
2. Fuel pump still primes when I open the door. I also hear a weird air leaking noise when I reconnect the battery, but I think it comes from the fuel pressure regulator (which I think is normal).
3. Checked for current at the ecu wires, wasn't sure what to look for but it was getting numbers.
4. Battery had 12.1 volts running through it (Haynes said 12.5 but is that really much of a difference?
5. Checked spark plugs for spark. Pretty sure we did it right, but there was still no spark. We tried multiple times.
6. Scan car, get code P01314 twice (ECM error).
7. Try to clear codes, says Comm error.
Why am I not getting spark? and why is the ECU error occurring, because we tested with a new ecu, and there was still no start, not even for a second like there should be.
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So I was driving on the HWY in 6th gear cruising at about 60, and I go to speed up and when my RPMS hit about 3k or over it feels like I am pressing in the clutch, like my RPMS are going up but I am hardly gaining any speed.
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I got my 2005 jetta gli used with about 41000 mi on it. Ever since i've had it, when i accelerate on the highway at 50 mph or faster, the car almost feels bouncy throughout, what that is.
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Middle of May, I went to Boston. On the way there, I started to notice a slight whirring noise that was only present when I gently feathered the gas to maintain highway speed. If I were to apply any more throttle, the noise would go away, and if I were to pull my foot away and allow engine braking, it would also disappear.
So I did my best to finish the trip to and from Boston adjusting my driving to avoid the noise. Once I came home, I researched and thought the noise might have been my wheel bearings (I had just replaced lower control arms, lower ball joints, inner and outer tie rods prior to leaving for Boston). I also had a shop install my upper strut mount bearings and bushings simultaneously with the wheel bearings.
Since then, the problem still continues. It has grown louder, but still occurs under the same situations. I've focused more on it and here are the conditions under which it occurs:
1. Car must be warmed up. Starting it up cold and allowing SAI to run then driving, car is fine, no sounds. Usually takes 20-25 mins of driving to get it to start making noise.
2. Car still only makes the noise when the gas is being feathered (ie barely pressing it enough to give it any sort of throttle. It does also make the noise between shifts when reengaging the gear and applying gas, as the throttle pedal passes the point of throttle off to throttle on.
3. I'm hearing more noise now during engine braking than I had been previously. Could be related?
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The other night around 11pm my car lost power on the highway. I was traveling 80 MPH. The RPMs would not stay up no matter how much I pumped the gas pedal. The car did not die though. I would hold an idle, but felt like it was missing a little.I had the car towed to my hotel. Two days later I tried to drive the car to a mechanic. The car started up fine. It drove for about300 ft and stopped moving again. The car did not die and would hold the idle.Towed to the mechanic. It sat over a Monday holiday in his lot. On Wednesday I called to see how it was coming on the car. They put it on the computer and the only thing that came up was an engine misfire. They have been driving the car for 2 days with no incident.They have not done anything to the car as they don't want to throw money or parts at it not knowing what the car is doing. Feels like a fuel restriction but it idles. Stalling Lexus IS300...
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I've been driving my V10 for 3 years now without a problem. The other day, while I was on the Highway in Italy driving at around 140KM/H, I suddenly had a loss of power. I could continue to drive the car, but I had no more tork... I stopped at the next gas station, turn the engine off, turned it on again, and the car drove normally again as before. About 200KM later the same happened again...
I went to check with the dealer - he hooked up the car to the computer - and told me that they had to change both turbos... What I find weird is that when I turn the car off and on again it works again. If the turbos would be defective, they wouldn't work again just by turning the car on and off. I think that it is more a problem with the turbo controller and if that's the case why change both turbo.
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I am using a Hyundai Santa Fe (Petrol, 2011 Model) here in Saudi Arabia. On July 17 (11:30 pm), I was driving in a highway at about 80-90 kms/hr when suddenly my vehicle lost power (steering wheel, brake, etc).
Baed on the diagnosis of our company mechanic, it was an alternator problem. He said the alternator bearing got stuck up.
Prior to this incident, on July 7, the same vehicle got stalled twice while it's parked. In the first case, I was able to use it after jumpstarting. In the second case in the same day (4 hours after the first case), jump starting didn't work so they have to replace it with a temporary used battery. I noticed that I had a hard start (the engine responds only after 3-4 key ignition). After replacing the battery with new one, I was able to drive normally from July 9 to Jul 17, and then the incident happened as I described in the first paragraph.
Question: Is there a way to detect the alternator bearing problem before it actually breaks down? If there is, what procedure or predictive test is normally followed to identify potential problems in an alternator?
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2003 Santa Fe - Loss of power while driving on highway. Dropped from 60 to 15 MPH in matter of seconds. Feels like a couple of cylinders (3.5 liter) are not working.
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