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03 2.7T Was running fine now won't start

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Old 06-18-2016, 12:39 PM
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Default 03 2.7T Was running fine now won't start

Like the title says.. daily driver for the past 2.5 years, bought at 160km timing belt / water pump done 20k ago. Has 247km on it now. Never had any engine problems.. replaced air springs / suspension, honestly i thought the engine was pretty solid and the tranny would be what killed it..

Makes some noise when trying to start. Turning over but just never catches.. i don't like the noise, included a video here: https://www.youtube.com/watch?v=OuIP...ature=youtu.be

Any help would be appreciated, thank you!


Codes:




15 Faults Found:
17861 - Exhaust Gas Temp Sensor 1 (G235): Open or Short to Plus
P1453 - 35-10 - - - Intermittent
17831 - Secondary Air Injection System: Bank 1: Insufficient Flow
P1423 - 35-00 - -
17819 - Secondary Air Injection System: Bank 2: Insufficient Flow
P1411 - 35-00 - -
17865 - Exhaust Gas Temp Sensor 2 (G236): Open or Short to Plus
P1457 - 35-10 - - - Intermittent
17965 - Charge Pressure Control: Positive Deviation
P1557 - 35-00 - -
18032 - MIL Request Signal Active (Check TCM for errors too!)
P1624 - 35-00 - -
17545 - Fuel Trim: Bank 1 (Add): System too Rich
P1137 - 35-10 - - - Intermittent
17547 - Fuel Trim: Bank 2 (Add): System too Rich
P1139 - 35-10 - - - Intermittent
18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 35-10 - - - Intermittent
17537 - Fuel Trim: Bank 2 (Mult): System too Rich
P1129 - 35-10 - - - Intermittent
17535 - Fuel Trim: Bank 1 (Mult): System too Rich
P1127 - 35-10 - - - Intermittent
16405 - Bank 2: Camshaft A (Intake): Retard Setpoint not Reached (Over-Advanced)
P0021 - 35-00 - -
17746 - Camshaft Position Sensor (G40) Open or Short to Plus
P1338 - 35-00 - -
16518 - Oxygen (Lambda) Sensor B1 S1: No Activity
P0134 - 35-10 - - - Intermittent
17800 - Camshaft Position Sensor Bank 2 (G163): Open Short to Plus
P1392 - 35-00 - -
Readiness: 0000 0000
Old 06-18-2016, 12:56 PM
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wow, what a list
i would look further into the camshaft sensor codes.
from what I've read, those failing can mimic fuel pump failure
Old 06-19-2016, 03:58 AM
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The noise it's making in the video points to something serious like TB failure. Doesn't sound like there is any compression.
Old 06-19-2016, 05:37 AM
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I agree on compression. Did you do a compression test?
Old 06-19-2016, 06:54 AM
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thanks for the replies..

The amateur mechanic in me told me right away "no compression" .. which is basically what i didn't want to hear someone else confirm.. but yeah i have to agree.

I don't really know how to do a compression test / probably don't have the gear..

Visually looking at the timing belt, it looks fine.. but i don't know how to check the setpoints / where the teeth should line up to etc..

I will note that when i picked up the AR from the mechanic after the timing belt i thought the idle was slightly rough, like i mean very very slightly, but i noticed it. I did mention it and he said it was fine. The guy is my wifes uncle and has been working on this german stuff for 30+ years so i don't want to push it and generally trust his judgement / opinion. Though if this related i basically have to know.. as it's probably going to affect my way forward here..



What do you guys say? Any easy-ish / somewhat inexpensive way to determine the cause of this ?

thanks!
Old 06-19-2016, 07:04 AM
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also say if this was related to TB job.. could it really hold out for 20k and then one day randomly die with basically no warning?
Old 06-19-2016, 12:24 PM
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Stupid question but when you crank it, all the belts spin? I keep listening to the video, and it sounds like the starter isn't fully engaging.

You can get a compression test kit cheap. I got one from Harbor Freight, but most auto Parts stores have them. You remove a plug, screw in the fitting, crank the engine, watch the gauge. You should see between 150-160. You may have to get fancy with an adapter, since the plugs are recessed in a tight spot.
Old 06-19-2016, 12:35 PM
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yeah i'm 99% sure they do as that's what i was looking for.. battery is low now but i'll go boost it and triple check because i'm almost second guessing myself on it now.. however i know i was like "nope, the starters fine" trying to look for obvious problems..

i just looked up a compression test kit and they are only $30 so i'm going to grab one tomorrow and see if i i can youtube it.. i understand the basic concept but never done it before.. i guess 30$ to tell me for sure if there is compression or not will tell me if it's even worth messing around here anymore or if it's a swap or all she wrote.. mechanic is out of town til end of month unfortunately..
Old 06-19-2016, 12:38 PM
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I've had P0741 on the tranny forever so i'm not sure if i even want to bother with a swap.. As i hear that this is pretty much not if but when, that tranny is going to go too.. Though it's been fine for 80k..
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