Golf IV / Jetta IV :: Hard Bucking At Partial Throttle
Apr 14, 2015
Buddy of mine woke up with a GLI that runs like this. Stage 2 Uni, cold air, 3 inch turbo back. [URL] ....
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Apr 14, 2015
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Golf IV / Jetta IV :: Hesitation At Partial Throttle In 1st And 2nd?
Car is a 20th, 1.8t 6-speed.
I noticed something the other day that is happening occasionally on acceleration. At partial throttle, usually pulling away from a light or stop sign, I get this weird hesitation. It only happens at partial throttle and usually only in first, sometimes in second. As the RPMs increase up to around 3k, it's as if I lose power for a second. You can feel the car stop accelerating for a second, then it begins to pull again.
If it's under heavy acceleration it never happens. It doesn't feel like the clutch slipping, more like the motor hesitating, but there's no noises or missing or anything like that. The RPMs don't jump up or anything. It's like for a second it's making no power, then it comes back.
Golf IV / Jetta IV :: 2013 - Bucking / Hesitation At Low RPM And 5% Throttle
I have been experiencing this one for quite a while now. The car is a 2003 GTI VR6 24v. It is stock other than a 3" hole in the bottom of the airbox to pull in cooler air.
When I am sitting in traffic, and in 1st or 2nd gear, keeping a consistent speed (10-15mph) and application of the throttle (not moving my foot at all), the car sometimes just decelerates/hesitates/bucks a little by itself, and kind of feels like it is hiccuping or not getting enough air or something.
At high rpm, or in any gear above 2nd, I don't feel the hesitation and the engine runs great and pulls hard. No MIL lights on the dash, and no other problems with it.
Is this normal for manual VW's? Or maybe the hesitation coming from the engine not getting a consistent airflow from the hole in the airbox?
Golf VI R :: Clutch Slipping In 5th And 6th Under Partial Throttle Going Uphill
I'm 350 miles into break-in period. Just had a DXD stage 2 daily clutch installed on Tuesday. APR Stage 2+ tune with VWR intake and APR downpipe and HPFP. Been babying car since clutch was installed. Under partial throttle going up hill clutch is slipping in 5th and 6th.
I'm also experiencing a terrible vibration thru the chassis at 2k RPM in upper gears with light load on engine.
Golf IV / Jetta IV :: Partial Crank And No Start
So i had my starter crap out on me the other day, it destroyed its self in good fashion. So i replaced it thinking that was going to be the only problem, but once i replaced the starter it STILL wouldn't start. the starter spins, but doesn't engage the flywheel. I can start the car with a bump start no problem...
Things I have done:
- Replaced the battery - 660CCA AcDelco
- Replaced the Ground wires, and positive, with new 1 gauge wire, and cleaned the connections.
- Replaced the starter A new one from acdelco, and a Used one (that was in working order)
Getting 13-13.5 volts while running.
Signal wire is fine, as I've tested the starter by completely bypassing it and just jumping straight from the Batter, still the same situation.
My only thought has been.. is it feasible that the starter may have destroyed a couple of teeth on the flywheel.... so when i goto engage the starter it might go for a quarter revolution and then find the location with the missing teeth and just spin ?
GTI 337/20th Anniversary :: Partial Throttle / Surging Usually In 2nd Gear
I've noticed this when driving for a while now but was never really sure what was causing it. It was usually in 2nd gear and the car would sorta surge on and off boost almost. yesterday i found out that it only occurred when i gave my car partial throttle. It would build boost, let off, build again etc. Full throttle and it was not a problem at all. My car is an 04.5 GLI chipped / 3" exhaust etc etc and would like to know what I can do with this problem.
View 4 RepliesDodge - W150 :: Engine Stumbling / Partial Throttle But Only When Warmed Up
About two weeks ago i had a ton of work done to my W100: clutch, freeze plugs, valve seals, body mount bushing, headers, x-pipe dual exhaust. The shop did tell me before i picked it up that it had a lean pop and the carb needs to be rebuilt.
as of now, it idles fine and drive fine when cold, as it starts to warm up it starts to become problematic - it feels like the engine stumbles any time you try to maintain a constant speed (slight throttle engagement), it accelerates fine, but that's about it. You have to drive it in a constant state of accelerate and foot off gas because it does not like you foot on the gas pedal just a little. if you do keep your foot slightly engaged it will stumble and the exhaust will pop - not so much a backfire as there's not at jerking.
-both coolant sensors are new
-spark plugs are FSM spec champion copper 404/rn12yc
-plug wires are a year old (msd cheaper line)
-timing seems fine (around 8-10 BTDC)
-watched at night to try to see if any arcing was happening, none that i could see or hear
-finagled some exhaust restrictors on the exhaust tips out of rubber plumbing couplers and big lag bolt washers to try to recreate the backpressure from the old exhaust, no difference
-went around the vacuum lines with carb cleaner and propane, couldn't find any distinguishable leaks
Fuel filter about a year old- new fuel pump installed while at shop.
Accent LC (2000-05) :: Engine Bogs Down Past Partial Throttle
Back in July some time I went out to my Accent (00' 1.5L) to go to work and it didn't want to turn over. Normally it's quick to start. So I turned off the A/C and it started right up. I went about my way. The next day, same thing happened. I thought it might be a camshaft position sensor, figured I'd be ok and headed to work. Got about 2 miles from the house and it died. So I pull over and try to start, no dice. Can't get it to start to save my life. We have it towed to the house and park it. This happened about 3 days before we closed on a new house, and having other cars we decided this needed to stay on the back burner. About a month later, I do some troubleshooting (not enough) and decide that the fuel pump is bad. I don't hear it coming on when I try to start the car. So, I replaced it. Turn the key, still no noise from the fuel pump. So, I leave it sitting for a couple of more months. During this time I've done more research than I care to admit regarding this car. I find out there's a Fuel Pump Check under the hood. I checked all relays/fuses before replacing the fuel pump. But didn't thing to test the fuel pump check. My loss there.
So, Saturday was a nice day I spent about 5 hours with my father and brother-in-law working on the car. First thing we do is Put 12v to it and the fuel pump comes right to life. So, we know it's not the fuel pump. Check the connections with a multimeter, we have voltage where we should and grounds where we should. So relay is working, wires are good. Finally we find a schematic of the fuel system and go hunting for the MFI (Engine) Control Relay. Well, I don't know how it happened since it's inside the car, but when we pulled it, it was rusty as all get out. We replaced it and the car still didn't want to start. Checked for fuel pressure at the rail, yup, we got fuel. So we sprayed some starter fluid into the intake and it finally fired up and ran. But it's not running how it ran when it died on me back in July. This car has been extremely reliable until this point. It's not a race car, but it will do 55-60 comfortably and get 38mpg doing it. Well, after it starts it's idling very rough, surging from 500-1500 rpm. We let it run for about 30 minutes and it continues to surge the entire time but doesn't stall. So I take it out for a test drive, as long as I only give it partial throttle 10-15% it gets up to speed in an acceptable amount of time. But anything more than that and it bogs down and will not accelerate. So I drive it home and park it.
The next day, I change the spark plugs, fill it up with some fresh gas, top off all the fluids and throw some Lucas fuel treatment into the tank. It started much better, but still surges, just not as badly as before. And the acceleration problem remains. I'm going to replace the wires next and see how things go and I've also ordered a new MAF and some other goodies. Oh, car has 133,000 miles on it. I do not know if the timing belt was ever changed and nobody in my family remembers if it was done either. I'm leaning towards being on borrowed time and the timing kit is one of the goodies mentioned. So, I've got a busy weekend coming up. But, I have to get this car back on the road so that my wife who is now commuting 140miles round trip per day can save some money on gas.
Ford F-150 (2004-2008) :: 2005 Truck At Partial Throttle Will Shake When Going Up Slight Incline
.Here is a run down of my truck 05 5.4L Screw has 130K on it. Sometime when going up a slight incline the truck at partial throttle will shake very very little. if I put my foot into it the shake goes away and the truck response just fine. It only does this when going uphill on the freeway and on the streets here in Dallas that have slight inclines.
The truck is not throwing any codes nor does it stall at lights. Starts right up in the morning and runs good. Nothing done to the truck except I have an Edge programmer and Magnaflow exhaust. I have pulled the programmer off and returned the truck to stock and it still does the same thing.
I bought the truck used in 07 had 40K miles on it. I'm thinking spark plugs or maybe a coil is going bad. But this doesn't happen all the time just here and there.
Golf IV / Jetta IV :: EPC Light And Bucking / Loss Of Power
Started my car (02 with a 2.0) this morning and as I pulled away the EPC light came on and the car lost power, almost stalling. I kept on going, and then the check engine light came on.
Got to a stop sign and it died on me. Battery light came on at this time as well. Started back up no problem but idled rough and kept dying. Just kept restarting and moving bit by bit until I could get home. EPC and check engine stayed on through all of this.
I also noticed that it would buck like crazy around 3000 rpm and not increase past that point. What could be going on here? I'm going to pull codes when I get home.
Golf IV / Jetta IV :: VR6 - Backfiring / Bucking Occur From 2300 - 5500 RPMs
I have a 2000 Jetta VR6 12v. I'm having an issue with backfiring. Also, I am having a severe issue with bucking. Sometimes it will not happen at all, and when it does happen it can occur from 2300-5500 RPMs. No matter how hard or soft I am on the throttle, it will hit this point, different everytime, and the throttle will cut out, then pick up, then cut out, then pick up.
Now, I know my MAF is throwing a few codes. But it was throwing codes for a month before this started, maybe longer,and the only symptoms were backfiring and a little lag at startup. However, the same night my issue began, I also developed a coolant leak. Upon inspection, the coolant leak path was traveling directly over my CKP sensor where it connects to the engine block, which also began throwing a code. The car starts fine, idles fine, and never stalls or dies. So my options here are replace the MAF if that seems likely to be the issue, or to attempt using liquid electrical tape to prevent the leak from hitting my CKP sensor.
Golf IV / Jetta IV :: 1995 Volkswagen Started Bucking And Shuddering Suddenly
I'm a broke grad student with a 1995 Jetta. I've had it about four years, and it's mostly been all right. Granted, it's mostly held together with luck at this point--my dad's a former mechanic, and he did a fair bit of work on it before I moved a thousand miles away. The other day on my way to work, the car started bucking and shuddering, especially when I first started moving. I was very nearly out of gas, and I thought that might be the problem. I put some in and things got almost totally better almost immediately. Tonight, the car tries to start, but it won't catch. My dad thinks I have water in my tank. Would that do this?
View 5 RepliesGolf IV / Jetta IV :: 2004 - Rough Idle / Bucking When Engine Is Warmed
I have a 2004 gls 1.8t Jetta. It has a straight piped turbo back exhaust, and a stage 2 tune. I recently had a problem with my car starting to rough idle when the engine gets to proper temp. The car starts to idle roughly, and when driving the car will bog down, if I keep my foot on the gas, the car acts like it is coasting and the rpms fall, but at some point the car will shoot off like i floored it. At lower rpms in the 1st and second gear, the car will randomly and periodically start bucking, with the same symptoms. I already replaced my coil packs and spark plugs with a kit off ecs, and when i went to change the spark plugs i had oil on the spark plugs and oil leaking from a bad valve cover gasket, so that was replaced as well. I replaced the fuel filter already.
The MAF sensor was just cleaned and didn't look too dirty. When I unplug the MAF it still idles rough. The fuel pump relay can be heard working properly when the door opens. Another problem that sometimes occurs on cold start is if I don't wait long enough for the pump to activate or sometime right after it starts, the car will start partly then stall out. When driving and the car is bucking the exhaust gives rich fuel smell. Also when 2 stepping in the car (which I don't do very often), the CEL starts to blink and the car misfires and drives rough. I figure since I don't have many parts on it yet I probably shouldn't do it anyway so I don't blow up the engine.
Golf/GTI VII :: EPC Light Came On / Throttle Little Hard
So driving home from work today and got on the throttle a little hard going uphill in the highway when the EPC light came on. I was only at at 4.5-5k rpm and the engine didn't totally cut out it just shuttered if I hit the gas. I pulled off turned the car off and when I started it again the light was off and car drove fine.
2015 Golf Sport SE 1.8T, APR Stage 2, APR downpipe, APR Carbon Fiber Intake, Remus Cat Back Exhaust Chrome Tips, LED license plate/rear/turn/brake lights
Passat (B5) :: 1998 - Bucking After 4500 RPM At Half Throttle?
98 AEB just rebuilt the engine completely, put a K04-15 turbo on it along with a FMIC and a forge diverter/BOV. Everything runs great idles great. when i try to get into it it bucks at 4500+ rpm. when i baby it she runs great smooth sailing. Is this a fuel issue?
View 16 RepliesAccent MC (2006-11) :: Bucking Under Full Throttle While In 3rd Gear
I've noticed on a few occasions that when asking for full throttle to merge on a highway, my car bucks while in 3rd gear (automatic) as the rpms climb above 5k or so. It's almost as if the car is choking on too much air (I do have the SRI) because backing off the throttle slightly immediately stops the bucking. The car does not buck in 2nd gear at the redline. What would cause it?
I'm thinking maybe the spark plug wires are arching or there is a slight crack in one of the coil packs that only manifests under full throttle. Or perhaps the engine really is getting more air than it can handle. I'm at 46k, no mechanical problems, never a check engine light, and the car operates smoothly under all other circumstances. The spark plugs were replaced with NGK platinums at 30k.
Golf/GTI VI :: Temporary Throttle Cut Out In Hard Cornering?
As I got to work today, I took the off-ramp particularly enthusiastically. At the very end of the ramp, I got a huge red warning on my MFI saying 'Fuel Pressure Low, Engine off'. Error message was on for maybe 2 seconds. I checked my tach, no dip below 2k, throttle response was normal. Car has run fine after that.
My hypothesis of this happening: I was low on fuel. Indicated range was 40 miles. When I took that corner hard, gas must have sloshed around in the tank in a way that the fuel pump didnt 'find' any gas for a couple seconds - causing the error. As the fuel settled in the tank, got back to normal.
Golf VI R :: Hard Jerking When Lift Off The Throttle
I just did a stage 1 remap on a 2010 golf r, everything is works like a charm. However, when I lift-off the throttle the car jerks hard. This only occurs on the first start and cures itself after a drive. I could simply replicate the problem by shutting down the engine and turning it back on. it doesn't have to be cold. it seems to be the ecu forgot everything it learn after i switch off the engine. Happens in all gears including reverse. noticed that during reverse, the car seem to go fast with light throttle , and back to normal once the problem is cured after a drive. Had no issues before the tune.
View 8 RepliesGolf IV R32 :: Shifter Seems To Move Quite A Bit When Accelerate Hard Or Let Off The Throttle
So after owning my R for just over a week I've noticed that when I accelerate hard or let off the throttle the shifter seems to move quite a bit. Is this normal with the stock mounts or is it something I should have looked at? I know the stock mounts are rubber to aid in isolating the vibration of the engine but it seems like the shifter moves a little more than I would expect.
View 1 RepliesGolf IV R32 :: Odd Clunk / Feels Like Rear Off Throttle From Hard Acceleration
Got an odd clunk, feels like rear off throttle from hard acceleration. Feels like diff bushings might be worn. Looking for some info about diff bushings and how they feel. Also found the front prop shaft coupler looks like its seen much better days so ill be replacing that.
View 8 RepliesGolf V R32 :: Partial Electrical Failure - Bad Fuses?
Just got home after a harrowing drive in the dark without dashboard lights, no climate control or turn signals or cruise control. Both the turn signals on the dash remain constantly on after the engine was turned off. Wondering if it might be the fuses but will look at first light. In the meantime...
what might have caused this all of a sudden?