Extremely brief loss of power - BMW M5 Forum and M6 Forums
E60 M5 and E61 M5 Touring Discussion 2005- Advertiser's Forum

 
LinkBack Thread Tools Rate Thread Display Modes
post #1 of 3 Old 21st June 2018, 05:00 PM Thread Starter
thefleshrocket
Member, Sport: On DSC: Off
 
thefleshrocket's Avatar
 
Join Date: Sep 2015
Location: Carbondale, IL
Posts: 252
Thanks: 21
Thanked 13 Times in 12 Posts
Extremely brief loss of power

Yesterday I put a couple hundred miles on my M5. On my way home, shortly after I fired up the car (engine still warm, trans in neutral), there was what felt like one brief misfire--the engine RPM dropped slightly for a split second and I could feel a slight shudder, but it recovered immediately.

Then, twice on the 120-mile drive home, cruising at around 3500RPM on the interstate, there was a split second loss in power. It felt like I took my foot off the throttle and then immediately reapplied it back to the same position. The two times it happened were not back-to-back--they were probably 30ish minutes apart. One time I was using the cruise control; the other time, I had my foot on the accelerator.

The rest of the drive was uneventful; engine power and drivability feel normal.

It's an '08 6-speed with 48K miles on it, and so far has been trouble-free. What does this sound like it might be? Throttle actuators?

--'08 M5 - 38K miles, 6-speed, Interlagos Blue, muffler delete, RPI scoops, charcoal delete
--'04 Mustang Cobra, bolt-ons, ~460rwhp (blower upgrade and 600rwhp coming soon)
--'08 Buell 1125R, '14 Yamaha Vmax, '05 Triumph Speed Triple, '03 Suzuki DRZ-400E
thefleshrocket is online now  
Sponsored Links
Advertisement
 
post #2 of 3 Old 21st June 2018, 10:53 PM
Tim_Mc
Addicted Member (>300 posts)
 
Join Date: Nov 2011
Location: Florida
Posts: 368
Thanks: 5
Thanked 24 Times in 20 Posts
Interestingly, I believe I've experienced the same thing. 2008 6 speed as well. It occurs randomly and not very often...like once a month. Only time I've noticed it is at cruise on highway where it skip a beat (as does my heart!).

110000 miles and no ill effects. Been doing it for years...
Tim_Mc is offline  
post #3 of 3 Old 24th June 2018, 08:27 AM
Fiftytwoeighty
M5 Expert (>4000)
 
Fiftytwoeighty's Avatar
 
Join Date: Nov 2009
Location: Huntington Beach (Surf City)
Posts: 5,714
Thanks: 1,136
Thanked 964 Times in 814 Posts
Never had that happen on my 6 speed, and she’s been my daily for the past 130,000+ miles.

The only thing I recall “wonky” is when my voltage regulator was going out — I had my speedo/gauges flatline, then come back up.

BTW...I just sent my e60 away for my second set of rod bearings and a refresh of the little things, while I’m out of town for a couple weeks.

~Woody

///M The ///Most Expensive Letter in the Alphabet
Driving Concepts Competition Racing School
s85 + (afterthought) 6mt =162,000 miles with no RCOD and counting ...just saying...

2007 Dinan S2 e60 m5 6MT Interlagos Blue; DINAN 3.91 Exploded @8x,xxx ; Performance Gearing 3.91 LSD 3 clutch, 30/50 ramps, R&P polished ; ClutchMasters FX350 clutch and LTW single mass FW @157,000 miles, RPi Oil Cooler/Scoops; DINAN High Flow Air Mass Meter/Intake, DINAN TBs, DINAN pulley, DINAN strut, DINAN Monoballs, FastAttack Tune, w/Kung Fu grip!, Einhorn Industries Race Jedders, track pipe, and x-pipe; DINAN Section 3, DINAN LTW 19x9 ET18, 19x10 ET25, Michelin PS4S 275/35/19 and 305/30/19, Macht Schnell 15mm spacers (front); FERODO FRP3000H race pads; StopTech BBK 6/4 380mm/35mm x 380mm/32mm w/SS lines; RDSport F/R sways; MCS 2WNR motorsport coilover, -2.0/-2.5 F/R camber; z3 1.9L SSK, with f10 shifter; F/R G1W-H; Uniden R1, remote ALP 2Rx:1Tx, F/R NetRadar DSP, w/GPS and BT. SprintBooster v3; Euro MDM and DSC off. Fluids: Motul 7100 4T 10w60, Redline ShockProof Lightweight 75w140, Castrol SRF, Unicorn Jizz and Wolfpack Blood; Rod bearings replaced at 84,000 and 150,000 miles!!!

1988 e28 m5 STROKER 420bhp 91 octane(Paul Burke s38b39); VAC LTW flywheel; MegaSquirt G2 DME; Nuke Performance fuel rail and pressure regulator, Carbon Fiber CSL intake; Lifeline Zero 360 FIA 3.0kg Novec fire suppression; Cool Shirt Pro Air/Water system; Euro RestoMod track car: caged, 6 point Schroth FIA harness, FIA Sparco Ergo & Sabelt GT-160 seats...AC/heater, interior, sunroof, rear seat delete; Euro Headers, dump valve, and race cats; CAE Ultra shifter; custom Ground Control Coilovers/camber plates; Mason Engineering front/rear strut bars; Brembo 6/4 BBK; 17x9 BBS Style 42 w/Michelin Cup 2; undergoing Euro restoration, building the e28 CSL ///Motorsport never built. 5.71lbs/hp

Not-spec e30 racercar!!! Fully caged for wheel 2 wheel racing

1996 FZJ 80; LOCKED; Factory TRD Supercharger; Expo/Overland/Backcountry Rig; custom sleeper/drawer system, full rock armor, 33"s on 2.5" OME Heavy Lift; Rigid LEDs F/R; 231,000 miles and counting.
2008 Audi A3 S-Line Quattro w/flappy paddles (Mammoth Mountain Commuter)
2000 e39 m5 TiAg (Gone, but not forgotten) sold 7/2014.

The Indys that I trust for all my Beasts' needs: oceansidemotorsports.com my local physician for service
fastattackmotorsports.com because JColley!
einhornindustires because WolfPack!

~I FRACKING!
~Viva La Wolfpack!
Fiftytwoeighty is online now  
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the BMW M5 Forum and M6 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes Rate This Thread
Linear Mode Linear Mode
Rate This Thread:



Similar Threads
Thread Thread Starter Forum Replies Last Post
New quirk-issue. Very brief power loss to radio and AC Gavin S. E60 M5 and E61 M5 Touring Discussion 22 5th August 2015 11:37 PM
Im at a loss....and a power loss...Help? monsstr E39 M5 and E52 Z8 Discussion 7 8th September 2012 07:45 AM
"High-performance compound brakes, extensive safety equipment, extremely impressive power-to-weight ratio": Official BMW M5 Press Release Gustav F10 M5 Discussion 8 19th June 2011 11:16 PM
Brief power shortage, SES light, what's going on? Ghosts in my car? SatanicPanda E39 M5 and E52 Z8 Discussion 12 29th October 2007 10:30 AM
News in brief (400bhp X5) HIPAD BMW 1 Series M Coupé, X5M and X6M Forum 11 27th March 2003 12:09 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome