Car Troubles Thread

Car Troubles Thread

Postby Maraschino Larry » Wed Sep 02, 2009 8:28 pm

For serious discussion of problems and repairs.
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Re: Car Troubles Thread

Postby Maraschino Larry » Wed Sep 02, 2009 8:41 pm

K I'll start :roll: :evil:

My stupid damn mkIV is broken again. Cold start it won't idle, just dies. After a minute (literally no more) of driving it will idle, but at 500 rpm...eep. This was my short list of ideas:

-MAF
-O2 sensor(s?)
-PCV valve
-fuel pump (filter??)

I don't think it's ignition related... I just did the plugs and it doesn't miss at all. Doesn't really seem to have less power but it's hard to tell :P

I unplugged the MAF and it behaves exactly the same... this would indicate it's not the MAF, right? Of course when it did this it threw a CEL (didn't have one yet), which cleared after driving it a few times. It returned after clearing, but these are the only codes I had:

16496 (P0112) Intake Air Temperature Circuit Low Input
INTERMITTENT
16486 (P0102) Mass or Volume air Flow Circuit Low Input
INTERMITTENT


Also it may or may not be getting poor gas mileage, and it may or may not smell rich. Both of these may be psychological as I'm paying hyper attention to everything. This, coupled with the fact that it idles after a bit of heat is generated makes me feel it's O2 sensor related... however no fault codes related to this have been tripped.

Ran one of these diagnostics and here are the results:
Image

Normal? Any idea?? It was completed at idle.

Thoughts?? ~170 000 km on a 2.0
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Re: Car Troubles Thread

Postby Mandeep D » Wed Sep 02, 2009 9:32 pm

PCV if there weres no cels before. Easy to clean it up & give it a try....

my $.02

good luck!
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Re: Car Troubles Thread

Postby Dreamstate » Wed Sep 02, 2009 9:53 pm

Coolant temp sensor!
Cheap and easy to try.. also check the value in vag-com on a cold engine.. it should be at ambient in only a few hours of the engine not running.
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Re: Car Troubles Thread

Postby Maraschino Larry » Wed Sep 02, 2009 10:12 pm

Srysly coolant temp sensor would do that???
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Re: Car Troubles Thread

Postby Dreamstate » Wed Sep 02, 2009 11:16 pm

Sure would
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Re: Car Troubles Thread

Postby Big Dac With Fries » Mon Sep 07, 2009 2:37 pm

Might as well post it in here, figured it's worth a shot.

It's my VR6 Passat.

For as long as i've driven it now (about 10 000kms) it's had this intermittent problem. Driving along in 5th gear (highway speeds) mash the gas, and there's a slight slipping of the clutch. It revs up quickly about 1000rpm, drops, grabs, then goes.

The problem is, it's intermittent. It did it yesterday with me and my gf in the car. I tried it 5-6 times after, and nothing.

Oh, the car also has:
- New clutch kit
- New clutch master cylinder, and slave cylinder
- New release bearing
- Lightened flywheel
- New rear main seal

- Upon installing the new clutch hydraulics, i've bled the system a couple times so far.

My dad seems to think it may be a bad seal that is coating the friction disc with oil, enough to slip it and burn it off.

I think it may be a bad flywheel or clutch. But then that would make the problem constant, not intermittent.

It's not a huge problem, but it's irritating. Add to that all the new parts and the "this shouldn't be happening" and it's just salt in the wound.

Any ideas?
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Re: Car Troubles Thread

Postby Dreamstate » Mon Sep 07, 2009 8:14 pm

It must be the main seal. What else could it be?
No coolant or anything dripping onto/into the housing?
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Re: Car Troubles Thread

Postby Big Dac With Fries » Mon Sep 07, 2009 11:47 pm

I haven't pulled the "access cover" off the bottom of the bell housing - but in all the time i've driven the car, I have not once noticed any leaking engine oil.

I'm going to attempt to post this in the MK3 forum... in a vain attempt to get some more input.
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Re: Car Troubles Thread

Postby gregosh » Tue Sep 08, 2009 7:59 am

This thread should be called "Ask Uncle Randy" :P

No problems with the rice cooker :)
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Re: Car Troubles Thread

Postby Mandeep D » Thu Sep 10, 2009 10:27 am

Dreamstate wrote:It must be the main seal. What else could it be?
No coolant or anything dripping onto/into the housing?


Or leaking slave cylinder seal? I forget where these are exactly.....
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Re: Car Troubles Thread

Postby Maraschino Larry » Thu Sep 10, 2009 12:31 pm

gregosh wrote:
No problems with the rice cooker :)


TRANSFER

TRANSFER...

TRANS FER
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Re: Car Troubles Thread

Postby Mandeep D » Thu Sep 10, 2009 12:42 pm

Luxurious wrote:K I'll start :roll: :evil:

My stupid damn mkIV is broken again. Cold start it won't idle, just dies. After a minute (literally no more) of driving it will idle, but at 500 rpm...eep.



Update?
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Re: Car Troubles Thread

Postby Mandeep D » Mon Sep 14, 2009 2:08 pm

VeerKrize wrote:
Luxurious wrote:K I'll start :roll: :evil:

My stupid damn mkIV is broken again. Cold start it won't idle, just dies. After a minute (literally no more) of driving it will idle, but at 500 rpm...eep.



Update?


EVERYONE LOOK FOR RICK!! HE MUST HAVE BROKEN DOWN IN HIS MKIV WHERE THERE'S NO INTERNETS!
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Re: Car Troubles Thread

Postby Maraschino Larry » Mon Sep 14, 2009 5:17 pm

RICK? NO INTERNETS? NO WAI

Still driving it like that... I've come to the unfounded conclusion that it's not the O2 sensor, or coolant sensor... I'm kinda thinking Dave may be right but IDK... Klaus said it sounds like a vac leak in that little hose that goes up to cyl 1 but I inspected it and tt looked fine. I'm gonna try and bring it to him for a diagnosis.

I'm so over this mkIV shit.
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Re: Car Troubles Thread

Postby Dreamstate » Mon Sep 14, 2009 8:22 pm

:(
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Re: Car Troubles Thread

Postby Maraschino Larry » Tue Dec 08, 2009 7:58 pm

Luxurious wrote:I'm so over this mkIV shit.



It was the battery. The Mother flipping BATTERY. Can you believe that?

Dead bat this morning, I bump started it and brought the battery from the golf with me to work, trickle charged it over the day. Put it in tonight, much to my shock it idled on its own at 750rpm :D What a pleasant surprise, especially considering I hadn't even entertained such a possibility.
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Re: Car Troubles Thread

Postby Dreamstate » Tue Dec 08, 2009 11:48 pm

Of all things :lol:
It must have just *barely* had the strength to bring you through summer.
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Re: Car Troubles Thread

Postby Mandeep D » Tue Dec 22, 2009 1:22 pm

1.8T cooling issue:

backstory: my A4 has not been warming up (according to the water temp gauge), although it does get warm enough to make the cabin comfortable, but not very quickly. So I changed the thermostat. Now, it warms up very quickly, but no heat seems to get to the cabin :? I thought I must've installed the thermo backwards, so I did it all over again; same result. I didn't do anything special to get the bubbles out - could that be the problem?

Thanks guise.
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Re: Car Troubles Thread

Postby square head » Tue Dec 22, 2009 1:32 pm

Nevvvvvvvvvvvvvvvvvaaaaaaaaaaargh lose.
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Re: Car Troubles Thread

Postby square head » Tue Dec 22, 2009 1:38 pm

Sounds like your t-stat was stuck open previous to replacement.

Bubble should work themselves out in 1.8T's (system has provisions to do so)

Check water pump! Open up reservoir while car is running to check return flow. Early model plastic propeller blades can partially break and block system or not circulate properly. This will make it heat up VERY fast (ie. overheat in the summer as with deathproof) but not get hot fluid to heat exchanger in the dash.

$
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Re: Car Troubles Thread

Postby Dreamstate » Tue Dec 22, 2009 1:55 pm

Yes, I remember driving death proof for mike when that problem arose.

*turn engine over*
*GO LIKE CRAZY*
*turn engine off*
*coast coast coast*
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Re: Car Troubles Thread

Postby square head » Tue Dec 22, 2009 2:00 pm

I miss that piece of shit
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Re: Car Troubles Thread

Postby Dreamstate » Tue Dec 22, 2009 2:22 pm

"old cars" ftw
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Re: Car Troubles Thread

Postby Maraschino Larry » Tue Dec 22, 2009 3:46 pm

Dreamstate wrote:"old cars" ftw

dawt
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