V70 AWD PCV and coil problems.

mokomaki · Sep 3rd, 2015, 19:04

So this all started when i got this car and noticed theres something funny with the steering... Turned out i needed a new steering rack, and ended up paying over 2k € for the service (new sway bars, tie rods, cv joints... shock upper parts, steering alignment...)

After that i got a sudden CEL, which i ignored due to being an previous VW owner... So then it started flashing and i stopped driving. Few days after checked under the hood to notice i have oil all over my engine cover... So my coils were soaked and 2 from the far right were cracked and different than the 3 first ones. I replaced them and cleaned the oil up. Called it a day and all was fine... Also replaced the oil cap. Few days after i had oil on my engine AGAIN... Did some research and figured it was my PCV system.... so i replaced my oil trap, and most of the hoses going to it. Only hoses i overlooked we're the ones going to the turbo.. But the lower hose at least was completly clogged.. Also cleaned my throttle body and intake manifold. Well during fighting with the manifold i accidently broke the ECT sensor under the thermostat. Tried if she runs. Well she did but of course cold start took a few turns due to not having any choke.. (?). Replaced the sensor the next day and she ran like a champ..... Which brings me to the only problem i have left!.... She still runs rough for a few minutes on cold starts... the car shakes and i can hear that the idle noise is kind of off... Also this got me another CEL this morning, but other than that she runs fine! I AM getting a few surges on WOT 2nd gear sometimes, but then again on the way home today i didnt get any.... The car has been chipped for 230~~ HP. But still electronic boost gauge only shows 0-6-0.7bar? Isnt 0.5 stock?

Thanks in advance.... just wish i could finally convince my wifes folks that my car actually works........

SteveSarre · Sep 3rd, 2015, 21:56

Hi mokomaki

Sounds you have done most of the work but I don't understand why you say "coil problems" in the subject of the thread. ?

Also you say "Only hoses i overlooked we're the ones going to the turbo.. "
There is a hose that runs across under the manifold from the left over to the turbo on the right, which I think is brittle plastic inside a black outer sleeve in some early V70s. It breaks very easily and then will cause an air leak.
I wouldn't be surprised if that would then cause bad idling.

I think they changed to an aluminium tube in the later models.

"getting a few surges on WOT 2nd gear sometimes" What is WOT?

Steve

Luxobarge · Sep 3rd, 2015, 22:08

WOT = Wide Open Throttle

Sep 3rd, 2015, 19:04	#1
mokomaki New Member Last Online: Sep 3rd, 2015 19:05 Join Date: Sep 2015 Location: Turku	V70 AWD PCV and coil problems. So this all started when i got this car and noticed theres something funny with the steering... Turned out i needed a new steering rack, and ended up paying over 2k € for the service (new sway bars, tie rods, cv joints... shock upper parts, steering alignment...) After that i got a sudden CEL, which i ignored due to being an previous VW owner... So then it started flashing and i stopped driving. Few days after checked under the hood to notice i have oil all over my engine cover... So my coils were soaked and 2 from the far right were cracked and different than the 3 first ones. I replaced them and cleaned the oil up. Called it a day and all was fine... Also replaced the oil cap. Few days after i had oil on my engine AGAIN... Did some research and figured it was my PCV system.... so i replaced my oil trap, and most of the hoses going to it. Only hoses i overlooked we're the ones going to the turbo.. But the lower hose at least was completly clogged.. Also cleaned my throttle body and intake manifold. Well during fighting with the manifold i accidently broke the ECT sensor under the thermostat. Tried if she runs. Well she did but of course cold start took a few turns due to not having any choke.. (?). Replaced the sensor the next day and she ran like a champ..... Which brings me to the only problem i have left!.... She still runs rough for a few minutes on cold starts... the car shakes and i can hear that the idle noise is kind of off... Also this got me another CEL this morning, but other than that she runs fine! I AM getting a few surges on WOT 2nd gear sometimes, but then again on the way home today i didnt get any.... The car has been chipped for 230~~ HP. But still electronic boost gauge only shows 0-6-0.7bar? Isnt 0.5 stock? Thanks in advance.... just wish i could finally convince my wifes folks that my car actually works........

Sep 3rd, 2015, 21:56	#2
SteveSarre Premier Member Last Online: Yesterday 18:52 Join Date: Oct 2004 Location: London/West Country	Hi mokomaki Sounds you have done most of the work but I don't understand why you say "coil problems" in the subject of the thread. ? Also you say "Only hoses i overlooked we're the ones going to the turbo.. " There is a hose that runs across under the manifold from the left over to the turbo on the right, which I think is brittle plastic inside a black outer sleeve in some early V70s. It breaks very easily and then will cause an air leak. I wouldn't be surprised if that would then cause bad idling. I think they changed to an aluminium tube in the later models. "getting a few surges on WOT 2nd gear sometimes" What is WOT? Steve __________________ V70 2.5 Turbo AWD Man. 1999 Red V70 2.5 10V Auto 1998 Green C70 T 20V Auto Conv. 2001 Blue, C70 T5 Auto Conv. 2000 Blue V70 2.5 Turbo AWD Auto 1998 Green, V70 2.5 10V Auto BiFuel 1999 Red (scrapped) V70 20v Auto 1999 Green (scrapped)

Sep 3rd, 2015, 22:08	#3
Luxobarge Premier Member Last Online: Yesterday 23:19 Join Date: Jan 2011 Location: Horne (Nr. Horley)	WOT = Wide Open Throttle __________________ Some people are like Slinkies, they serve no useful purpose but they still bring a smile to your face when you push them downstairs.

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