Prius (2004-09) Fuel :: Can't Decide Whether To Use Gas When Coast With Neutral
I'm very puzzled by how prius (2008) decides whether to use gas when I coast with neutral (I only do that if there is a long stretch of the road that is going down the hill). Same roads, same driving style, but sometimes, the gas usage goes to 0 but sometime it continue to use gas. Sometimes if you just let it in the gear a little longer or just press the gas pedal, it would go 0 after switching to neutral. There is no consistency that I can come up with the best method to get it to not to use gas and just slide using the gravity and momentum.
I can understand if it has to fill up the battery but when it uses gas at neutral, no transfer of energy among all parts. The diagram (wheel, engines, battery) shows standstill but it still uses gas. I don't have air on and turn the fan to the lowest and it doesn't make any difference.
A few conclusions I had:
It will always use a little gas at highway speed (55 to 70mph).
It appears to use gas at higher humidity (not sure but the MPG is higher when it's humid).
Ford - Ranger :: Stalled When Put Car In Neutral To Coast
In my 98 Ford Ranger, 4 cyl. manual, was driving up a 6% grade on the freeway, about 60mph for about ten minutes when i reached the top and began on a downhill grade. i let off the gas and put it in neutral to coast and then i looked down and it had stalled in neutral. i put it in gear to jump start it, it wouldn't fire back up. so i pulled to the shoulder. it wouldn't key start either. towed to mechanic, code read cam sensor. he also did a comp test and # 2 and 3 cyl were lacking comp. so the mechanic thinks the lack of comp is more serious than just the cam sensor, he thinks it might be the head. so my question is, can the cam sensor get far enough out of time so there would be no comp?
View 19 RepliesAccent RB (2012+) :: Idle Speed Around 900 RPMs When Put Car Into Neutral To Coast
Im curious if this is normal or not. When I'm driving and I put my car into neutral to coast, the idle speed is at around 900rpm. When I come to a stop, the idle will drop to around 650rpm. Is this a design feature? I wish the rpm would drop more to conserve on gas while I'm coasting!
View 7 RepliesGolf IV / Jetta IV :: Check Engine Light / Blowing Black Smoke / Shut Off In Neutral
I bought a 2003 Vw Gti 1.8t ... What to do or look for when something goes wrong . About a two months after driving it, it won't idle and it shuts off while in Neutral . I've done my research and i believe he didn't install the BOV in right, only bc it is not recirculates the air. Make sense? Is there ANYTHING i can do so it will run better and idle?
View 5 RepliesGolf IV / Jetta IV :: CEL On / Idle Goes Up And Down In Neutral From 800 - 1300 RPMs
Have a 2001 wolfs-burg 1.8t, has about 220k miles on it, i know, its a lot. Right now, the check engine light has been on for a few months and the idle is very weird. It goes up and down in neutral from 800-1300 rpms and sometimes i smell gas. Also the triangle with an '!' and circle around it yellow light comes on some times now. I heard it could be MAF or a vacuum leak. A mechanic is going to check it out soon...
View 10 RepliesGolf IV / Jetta IV :: Front Right Clicking / Clunking Sound While In Neutral
I have a 2004.5 Jetta GLI 1.8T. 96K miles.
The sound just started a couple of weeks ago and is becoming more prominent. On cold starts (like in the morning or after sitting for a while), the front right of the car makes a repeated clicking/ clunking sound while in neutral. However, the second I apply any gas, the sound goes away. Only when my engine is idling at around 700-800 rpms does it make the sound. After driving the car around for about 10 minutes or so ("warming up"), the sound eventually goes away and comes back on the next cold start.
Yesterday, my ABS light came on and never went away. I have no idea if there's any relation. May be a separate issue. I've tried searching for a diagnosis with no luck. Thoughts on what I might be hearing?
Golf IV / Jetta IV :: Stays In First Gear On Hot Days While Putting In Neutral
My issues: when I'm on gear 1 for example, on hot days, and only on hot days ( 25 deg.c and more) when I put it on neutral it suppose to go at "home" position ( i think this is how you guys call it, like align with the 3rd gear) But it stays align the the first.
Same with all the gears. It's stays aligned with the gear I just left.
Golf IV / Jetta IV :: Manual Shifter Hangs Up And Won't Self Center In Neutral?
It's been going on for awhile now...shifter hangs up to one side or the other instead of self recentering when put in neutral. I have checked the interior and there is no dirt of grime on the white nylon ball that the shifter floats on and it was also lube with some white lithium spray (liquid wrench). Checked under the hood. All connections are good and solid and free from any obstructions. Trans fluid was changed 10k miles ago. Not sure what else to check.
View 3 RepliesGolf IV / Jetta IV :: Knocking Noise While In Neutral - Bad Throw Out Bearing?
so lately I've been noticing a slight rattling/knocking noise coming from my car while it is in neutral and the clutch is not pushed it. When I push the clutch in, the noise goes away. I've read that this could be a sign of a bad throw out bearing? Is this right? If it is the throw out bearing, how long can I expect until it completely craps out on me? It seems to only do it on cold starts and sometimes on the uneven ground. I figured I should start saving some money to have this done because I'm not comfortable doing it myself.
Some other questions I had is my car is a 24v VR6 and it has 144k original miles. The timing chains and guides have not been replaced (to my knowledge at least). I know that replacing the throwout bearing requires removal of the transmission and so does doing the lower timing chain. If I get my throw out bearing replaced, should I have them do the chains also since they are already in there? I have no noise coming from my chains at all so there are no signs that they are going bad. Also, should I have my clutch replaced while they are in there? Again, no signs of a bad clutch either.
Golf IV / Jetta IV :: Turn Signal Stalk Doesn't Go Back To Neutral
So my turn signal stalk doesn't go back to neutral after a turn.. also, I don't hear the usually " clicking when turning the wheel that you hear when it goes far enough to re-set itself. What controls this action? Its not the clock spring thing commonly referenced to the airbag airbag is it?
View 2 RepliesGolf IV / Jetta IV :: 2004 2.0 BEW Engine Stops Running
Starts right up, runs fine. No CEL. No warning. No symptoms. It just stops running. It may or may not start right back up, but when it does start back it runs as fine as it was running before it quit.
View 2 RepliesGolf IV / Jetta IV :: 2004 - Ticking Noise From Engine
MKIV Jetta wagon 2004. Bought used last year. Four previous owners with 125K on it.
Problem: After oil change where I previously had 5W-30 with valvoline dino, I changed with a different brand 5W-30 (Peak brand). Ticking noise started immediately from engine area usually only after it got up to temperature. Also using different oil filter. Initially not sure if it was injector or lifter tick. It ended up being lifter tick, and the give away was when going down a small hill and the engine downshifting, the increase RPM caused the tick to increase at the same rate. So here is the path I went down.
1. Swapped out oil filter - no change. I thought this might work because I was using a fram tough guard.
2. Added some rislone with ZDDP additive. Quieted down the valvetrain quite a bit, but did not solve the problem
3. Added rislone engine treatment. Got better, but still not totally solved.
4. Tried to "drive it out" and get some mileage on the rislone . Didn't work. Definitely better though
Finally, after all that I figured let's give my baby some of the thick sauce. So I pulled out a quart from the diptube with my suction device and put in a quart of 10W-40. Almost immediately PROBLEM GONE. So either that crappy peak oil doesn't have the viscosity that it advertises, or the valve train is just getting old and needs a little bit thicker oil in the summer. Probably both. I will also keep using a small dose of the ZDDP additive to extend the life of the valvetrain, as it sounds really good with that stuff in the system.
Golf IV / Jetta IV :: 2004 - Flashing Engine Light When Start The Car
This morning i went to start my car and threw a flashing engine light. common sense says its a misfire. i know it's probably smart to check my spark plugs first but here's my dilemma. if it isn't the plugs and turns out to be my ignition coil, where the hell is that even located? I have an 04 Jetta 2.slow engine
View 2 RepliesGolf IV / Jetta IV :: 2004 - Blinking Check Engine Light
2004 VW jetta 2.0 ... So my vehicle stalled on me i replaced the battery, the alt, and then when i started it after installing the new alternator it didn't sound right so i checked it out and saw a spark plug wire was in very bad condition and was causing a spark where the spark plug and the spark plug wire connect so i bought a new set of spark plug wires and swapped the old ones for the new ones. Now when i start my vehicle the check engine light is blinking and the car definitely does not sound right. i am positive i did everything correct when swapping the spark plug wires but i am lost as to what could be the issue.
View 1 RepliesFord F-150 (2004-2008) :: Humming Noise During Coast - Vibrations In Steering Wheel
My 05 F150 with 107k miles becomes increasingly noisy.... From speeds about 15mph up to 50mph there is a humming noise from the front wheels, clearly audible during coast. It sounds almost like tire noise, low frequency with a clear tone (not rumble) and gets worse in LH turns / better in RH turns. The frequency follows the speed.
I also can feel vibrations in the steering wheel. It's not the tires, I changed them without any impact. Checked wheel bearing play - seems OK. The locking hubs are stuck in locked position, with quite some play between the hub and the driveshaft at the RH front wheel (have not checked the LH front wheel yet), seems weird...
Where should I start to look, - wheel bearings or locking hubs? And more important, we plan a 1500 mls trip to Germany - do I dare to drive the truck? What is the worst thing that could happen if wheel bearing or locking hub?
Golf 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 IV / Jetta IV :: 2004 - Check Engine Light Flash When Driving
My 04 GTI 1.8T got the infamous codes P0300, P0303 and P0301 yesterday morning. The check-engine light flash when I drive it. It is a little rough when the check-engine light flashes, but it is drivable and nothing major. When the car idle or when it come to a complete stop for 15 seconds or so, the check-engine light goes away and it comes back after 15 seconds or so after took off from stop.
I cleaned the MAF last night, but the check-engine light still acts the same way as yesterday on the way work this morning. The codes refer to miss-fire. This is my first VW.
Since I can easily get sparkplug from Checkers, I'll try it first. Checkers carries Autolite, ACDelco, NGK and Champions. Which brand do you prefer for VW engine? I hope that it is not the coil pack. It is expensive for $30 each at ECS Tuning.
Golf IV / Jetta IV :: 2004 - Bottom Of Engine Does Not Have Lower Belt Guard
I just bought a 2004 Jetta and noticed the bottom of the engine does not have a lower belt guard... I can just see the serp belt spinning. I feel like there should be some kinda guard to protect it from Weather and debri? It's a 1.8T.
View 4 RepliesGolf IV / Jetta IV :: 2004 - Engine Dies When Opening Driver Side Door
When opening driver side door, engine dies.Cannot access the convenience control module with VAGcom.
Swapped in another CCM, same behavior. Have not tried yet to access the swap module with VAGcom.
What might cause the 'engine kill' when door is opened? How to further troubleshoot?
Quick fix: disable 'door contact' (not sure, but assume it is integrated into the door lock/actuator (as a microswitch likely?).