Wont Rev Past 4K

ACk · Post by **ACk** » 09 Feb 2012, 19:22

So here is what i ran into, i posted a quick video, is it the boost valve? coil? i was wondering why i had no power at times...

ok, well i guess i cant upload this video...

i would appreciate if anyone has any ideas, before i tare things up

lol

from idle RPM depressing the pedal it rev's up to 4k and wont go past it, almost like a limiter or ???

Post by **jimmy57** » 09 Feb 2012, 20:29

Will not rev past 4K in neutral or park is normal.

s70glt novice[Will] · Post by **s70glt novice[Will]** » 09 Feb 2012, 20:55

1) dont do that in N or P. Bad things happen. think trying to pedal backwards on a bike as fast as possible. Not good.
2) how is it in drive? The same?

ACk · Post by **ACk** » 09 Feb 2012, 21:40

it was in Park when i revved it up, any other car will rev freely throughout the RPM range. In drive its been slugish, although the 4T65E is showing its usual downfall, it doesnt boost/pull like a turbo car should. My other cars are 2 Volvo 850 turbo's and i have been around Turbo engine for over 20 years and this feels like its not receiving spark to a cylinder, almost like a bad coil. I bought this T6 3 months ago and its super clean i must say, and i havnt got around to driving it and really feeling the powerband because of the occasional "limp mode". I really appreciate you guys replying back and i will keep researching more to find out what it is.

PS i do remember when i was checking the plugs, one of the coil boots came off from the coil body, im wondering if its a bad coil. hmmmm

Post by **jblackburn** » 09 Feb 2012, 21:43

There's a rev limiter in park. This was fitted to all Volvos (except maybe the S40) after 1999.

Bad coils are a very common problem.

ACk · Post by **ACk** » 09 Feb 2012, 21:52

How would i check the coils? i cant remove them one by one while the car is running, because of the turbo plumbing... so.. i wold think i need to read Ohms, which is not my department.. but a rev limiter make sense, and a bad coil makes sense as well... and the only message i got in the lil window in the cluster is SRS... and a Red triangle in between the speedo and RPM gauge.. will look into it.

BTW is there a PDF file for the transmission removal on this forum? i did a search and couldnt find one if there has been previous postings... thanks again guys..

After transmission upgrade, is the fitting of the twin TD04's and 3'' custom exhaust system and etc....

s70glt novice[Will] · Post by **s70glt novice[Will]** » 09 Feb 2012, 23:24

WOAHHHHHHH TWIN turbos? You have to let us know how that works out....I've had a certain dream of mine.........

It will be an EPIC PITA, just a fair warning

ACk · Post by **ACk** » 10 Feb 2012, 23:04

lol, yes its twin turbo, but revamped, i have fabricated a few turbo/twin setups, 300zx, Mazda rx7, grand national, datsuns, and now my lovely T6..custom intake from the front grill and then a custom intercooler setup, and so on .... should be an interesting ride...lol , and in the mean time, pump some more HP's put of my 850 T

s70glt novice[Will] · Post by **s70glt novice[Will]** » 11 Feb 2012, 15:32

Im totally not jealous.....okay. i am. Very.