During the winter, i always noticed that when starting up the car for the first time, the rpm always jumped high for about 60sec - probably around 1100. i know is normal - just the antichoke kicking in. However, summer is almost here and today was a hot day, and when i started the car and it automatically idled at 600rpm straight away. Is this normal ? or has something happened to my autochoke?
View 8 RepliesThe revs surge from low idle to high (about 1000 rpm) every few seconds, but only when the truck is in gear,and the AC is on. What it could be. Also is it something I could fix myself? I have been driving with out the AC for a while but going into summer I need it on.
View 2 Replies(2011 Golf TDI) ... When I shut off the car there is a sort of high-pitched whine/hum that continues for a few seconds after the car shuts off. Sort of sounds like it's from the front of the car somewhere. What is it?
I'm not normally concerned by the noise itself as it sounds entirely intentional like something is intended to run for a few seconds, but this morning the whine was punctuated with a few random scratchy/scraping sounds. Ruh roh?! Do I need to be worried about something about to fail?
I've been having some issues with my mk4 R32. Right now i'm leaning toward changing the fuel pump and filter but i want to be sure before i do.....
Problem: I've been daily driving my r32 to work for the past couple weeks and about once a week it will start, idle for a couple seconds and then just bog out and die. no codes, just idle, then chugging and dying. it will fire with some starter fluid and will sometimes hold a very sickly idle but most the time will just run the starter fluid out. the weird thing is is that it's intermittent and will happen randomly and if i leave it overnight or sitting for a couple hours it will fire up like nothing was wrong. i just wanted some input on what it might be before i replace the pump. i have already done the relay so its not that.... the only code that it has ever thrown while i have owned it was for the intake changeover valve (N156) which i cleared and it hasnt yet to come up again.....
I was coming at the climb, my car hit limp mode twice and later I noticed my CEL was on. I let it sit over night when I got where I was going and started it up today started fine but the CEL came on after it ran idle for about 45 seconds. I check the oil and it was on the low end. What it could be?
I drive a mk4 tdi with a malone tune. I am heading back to the valley tomorrow evening I'm just by kamloops right now. Also what oil should I top it with just so it isn't so low for the return trip? (Always get my oil done at the shop)
Random rough idle about every 30 seconds at low 700s (rpms) and it'll bounce up and down a little. The code was p1515 (No CEL or other lights have come on yet) which is something about the intake manifold valve and there is an air-shooting noise that is pretty loud but just sounds like air that's being lost somewhere like maybe a leak and that happens when i rev right before you can hear the engine rev the air/shooting noise occurs. I don't really think I'm losing power but I got the car recently so maybe I am and don't notice it. If this is a common leak or something with the intake manifold valve let me know,
View 2 RepliesSo my cars idle has been revving slightly from 9 to 10. siting idle sometimes it will do the same but from 10-11. when it does it shudders the car slightly.
So I stop by a local auto parts and get the check engine scanned.....it comes back as Idle control too high.
So What is that? The guy working there who seems to have some knowledge of turbos said it was either some control piece or a vacuum leak.
So my R32 idles high when stopped and I googled it and people said that a new battery fixed the issue. I replaced the battery and it stopped doing it for a few days. Went on a long road trip (1200 miles) and it did it again. Been a few months still does it.
View 24 RepliesCar started to do some weird stuff today. Misfiring under high load, as I get into boost.
Idle is around 1000-1100 RPMs. Cold start is fine, idle is normal in terms of going higher a bit, but then it sits at 1kish. This started last night after the car sat for a couple hours. Totally normal running and driving prior to this.
I've seen all the MKV threads about it that suggest everything from battery, to alternator, to grounds, to vacuum leaks, to intake leaks, to MAF.
My car is a 2010 gti mk6, unitronic stage 2, apr turboback, r8 coilpacks, stock intake with k&n drop in filter. Several months ago, it started throwing CELs, P2096 post catalyst fuel trim system too lean bank1. I cleared it. It kept coming back. Sometimes it threw P2293 fuel pressure regulator 2 performance but I read it via VCDS, it should be P0088 Fuel Rail/System Pressure too high - intermittent. it was accompanied by some high idles at stop light e.g. at constant 900, 1000 or even 1200rpm occasionally. but the car drove well, seemed like nothing wrong.
High idle youtube link: [URL] .....
I changed the front o2 sensor but the problem persisted. Then I thought it was the MAF, I unplugged it, oil consumption improved but high idle and the above P2293 persisted. Recently, the high idle appears more frequently. I now suspect it is the PCV valve. I took off the oil cap this morning, felt some suction, the engine shakes a little and exhaust sounded a little rough but rpm didn't change. Taking off the oil dipstick showed the same. Is it the pcv valve?
On my 2010 Golf with 2.5, when I first start car above 40 degrees it goes into high idle for a few seconds which is normal. However, below 40 degrees it goes into low idle on cold motor. I brought this to 2 different dealers and they checked computer and fin no fault codes. How can I get this fixed?
View 11 RepliesYesterday when I started my car the coolant temp was near 100 (from a previous drive several hours prior) and it was over 80 degrees outside, yet the car went into high idle mode as though it was cold outside. It does this sometimes, but not always, and if I dont let it idle down and just start driving, it'll stay in high idle for a long time (i.e. even after a couple miles of driving, if I put it in neutral it'll rev back up to high idle).
Air temp sensor and coolant temp sensor are working properly, but it doesn't seem like a normal thing to do, but its done it for years. Anything else that might cause it, or any way to stop it?
High pitched noise when car is running at idle and when not on the gas. Whenever I accelerate it goes away. Pitch/Loudness seems to be higher with RPM's. Could be coming from front of the car.
Checked so far:
I read some other posts about this and fully disconnected my aftermarket radio. I'm pretty sure it is not a ground loop as no power to HU shouldn't still create the whistle.
What I have:
I have an EIP aftermarket street exhaust. I checked the exhaust to see about the flapper, but I don't believe I have any of the items involved - maybe I'm wrong. After some more reading it sounds like a vacuum leak as it goes away upon acceleration. I need identifying what vacuum hoses are still in place/clamped off with having an aftermarket exhaust.
I do not have a CAI, just a K&N drop in.
I picked up my latest R back in April - 3 owner, 33K mile car - as far as I know no tune. The previous owner owned the car for the previous 9 years and kept it stock.
The issue: If the car sits for more than one day (I work form home so this happens a lot) upon initial start up it will start and idle at 800 RPM and then drop a little from there once warmed up. Now if the car sits for less than a day, it will cold start as it should - high idle then a gradual drop.
I'm not sure if this qualifies for a "cold start" but my 1.8T sounds imperfect when I start it for the first time of the day. It'll rev around 1200 RPM, instead of the normal 800RPM idle if I start it after it had recently been turned off for a short period.
It sounds almost like my old car that had an exhaust leak, but not as obnoxious. When it settles back down to 800RPM it really purrs and sounds great. Is this normal?
2003 Wolfsburg Jetta 1.8T, not sure if I wrote that in my profile yet. 41k miles and recently serviced for 40k milage. Has sounded this way before and after the service.
I have question about power steering pressure switch in golf 4 1.8t
Idle go high to 2000 rpm .. when i plug-off the Power Steering Pressure Switch its go fine .. i want know is this " Power Steering Pressure Switch " effect stability in high ?
1996 Ranger 2.3 140 CID XLT 126,000 Miles. When coming to a stoplight or stopping the engine idle is low and causing engine to almost die. Engine has been stuck at high idle a couple of times. It started with the engine idle slowly coming down and now it its too low. I suspect the Idle air control valve.
View 1 RepliesI have a 93 sl1, about a week ago it made a high pitch squealing noise for a few seconds before the car died. after that it would not start. I checked all the pulleys, they were fine.
View 2 RepliesI have a 2007 prius. About a month my dad has lightly knocked the car with a wall at the front left side of the car. the coolant tank has been pushed & the pump has started giving abnormal noise whenever running but the problem is that i got a check engine light with the red triangle & a sign on the multi-information display. I have pulled the tank to its right place & released the pump after cleaning the calcification and so the noise has stopped & i have disconnected the battery during working & so the error code has gone.
After about one day the check engine light has came back alone & the reading was P1150 which means a coolant path clog.
I have tried all I can & done some tests; the water temp. in the coolant tank is hot even after hours of driving. I think there's no clot because when i cleaned the pump i have puffed into the tubes after disconnecting some connections & the air was going out easily from all openings. I have resetted the error code 2 times
now i'm having a new phenomenon.. in the past 2 days during driving & especially when i pull hard on the pedal & when the battery is in its lowest level . Suddenly the red triangle show up with sign that indicate a high temperature on the multi display. These signs don't remain more than 3-5 seconds & then disappear.
It's been cold, but I've been driving. When I park and power down, I'm hearing a high-pitch sound...like a fàn...it lasts about 10 seconds.
View 10 RepliesI've got a 1994 Camry V6 that I am swapping transmissions from automatic to manual. Before the swap, the engine ran fine and started first time every time. Now that I have everything back together, the car will take many times of 10 seconds or longer cranking to be able to start. Once it does start, it idles very high and within 15 seconds will die. If, during the time it is running, you touch the gas at all, the car instantly dies. I've got CEL's for CPS and TPS. I have replaced both sensors numerous times, checking with a voltmeter they are within spec as are the wires, I have replaced the ECU and wiring harness.
View 5 Replies