• Hi Guest! Being a Paid Subscriber is NOT required to participate at BCF. However, if you enjoy BCF and find our forum a useful resource...
    Please consider supporting us by **Upgrading**
    (PS: Subscribers don't see this banner)
Tips
Tips

More BMW Z4 trials

Basil

Administrator
Staff member
Boss
Online
As I posted earlier, I finally got the cooling system on SWMBO's Z4 all sorted out (pretty much replaced the entire cooling system, except the radiator). Things have been going smoothly for a couple of weeks, but then the car started misfiring, most noticeably when stopped and when just starting out. It seemed to smooth out a little at speed but still not as smooth as I know it should have been.

I put the code reader on and got a code for a misfire in #3. My first step was something I was going to do anyway, and that was to replace the spark plugs with NKG Laser Platinum. I wasn't really expecting this to fix the issue, but I had this planned anyway. As expected, it was still missing on #3 after plug replacement.

My next step was to swap the ignition coils for #3 and #4 cylinders. I then reset the codes and took it for a drive. I checked the codes again and the misfire code move to #4.

Using my remarkable powers of logic and deduction, I deduced that the culprit was a bad ignition coil pack for the misfiring cylinder. I swapped the coils back and replaced #3 with a new coil and viola - it's fixed! Her car is now running as smooth as ever.
 

DrEntropy

Great Pumpkin
Gold
Country flag
Offline
Congratulations! Glad you didn't need to resort to dancing around the car performing self-flagellation and tossing chicken bones on th' hood!
 

AngliaGT

Yoda
Silver
Country flag
Offline
As I posted earlier, I finally got the cooling system on SWMBO's Z4 all sorted out (pretty much replaced the entire cooling system, except the radiator). Things have been going smoothly for a couple of weeks, but then the car started misfiring, most noticeably when stopped and when just starting out. It seemed to smooth out a little at speed but still not as smooth as I know it should have been.

I put the code reader on and got a code for a misfire in #3. My first step was something I was going to do anyway, and that was to replace the spark plugs with NKG Laser Platinum. I wasn't really expecting this to fix the issue, but I had this planned anyway. As expected, it was still missing on #3 after plug replacement.

My next step was to swap the ignition coils for #3 and #4 cylinders. I then reset the codes and took it for a drive. I checked the codes again and the misfire code move to #4.

Using my remarkable powers of logic and deduction, I deduced that the culprit was a bad ignition coil pack for the misfiring cylinder. I swapped the coils back and replaced #3 with a new coil and viola - it's fixed! Her car is now running as smooth as ever.
Wow! - you coulda had a Z8!
 

DrEntropy

Great Pumpkin
Gold
Country flag
Offline

LarryK

Obi Wan
Gold
Country flag
Offline
Remember, #3 went down, might renew the rest.
 
Similar threads
Thread starter Title Forum Replies Date
AngliaGT A Few More I saw Yesterday Spotted 10
SteveTheBrewer Spitfire More rust repair Triumph 1
AngliaGT A Few More along Highway 220 Spotted 3
Bob Claffie More pics from Falls Village Festival Other British Cars 3
Sherlock Another cruise night, more interesting British iron Spotted 2
Y MGB More things that seem odd.... MG 2
D TR2/3/3A More Fuel pump questions. Triumph 10
jlaird MGB More on Bee's status MG 6
AngliaGT A Couple More Spotted 0
tr6nitjulius TR6 TR6 meeting my Demands & Giving Back more! Triumph 2
tr6web TR6 More leg room needed Triumph 5
Got_All_4 For Sale Brake caliper pistons Ceramic Coated and more Triumph Classifieds 0
Nelson No more MG Midgets Spridgets 3
HealeyPassion Getting a bit more space for triple Webers... or EFI Austin Healey 3
K TR2/3/3A Auxillary Carb Return Spring in More BS about TR's. Triumph 0
K TR2/3/3A More pics of Kast Cam Triumph 4
K TR2/3/3A TR3A SU's More Pics Triumph 0
Ripper01 For Sale more TR-6 Used Parts Oct 2019 Triumph Classifieds 0
lbcspinners A- H Frog E: no more Bugeye oil leaks! Austin Healey 4
7 No more Bosch tools for me Restoration & Tools 4
D TR2/3/3A More small nuts [ and studs!] Triumph 2
C TR6 More fun with Lucas Triumph 5
Bayless More Sprite progress finally Spridgets 23
Bayless Even more progress - the Prefect Other British Cars 5
maxwedge5281 one more time.....mirrors! Austin Healey 14
Bob Claffie T-Series More or less TD action MG 0
R More Shroud to Scuttle install Austin Healey 4
Y MGB Answer to a question creates more new questions.... MG 12
K TR2/3/3A Auxillary carb return spring in "More BS about TR,s" Triumph 9
S TR2/3/3A little more door gap Triumph 14
Michael Oritt Replacing timing chain tensioner and more Austin Healey 24
T How to add a bit more realiability/endurance to a stock 1275 engine rebuild? Spridgets 9
Drone Dog BT-7 tri-carb Two more questions Austin Healey 18
R TR2/3/3A One more crank pulley question Triumph 7
K TR2/3/3A More electrical....the Starter? Triumph 8
T TR2/3/3A Is there a timing cover seal that will last more than a couple of year? Triumph 23
K TR2/3/3A More electrical....the Starter? Triumph 5
S TR4/4A More restoration questions Triumph 8
K TR2/3/3A One more Steering Box question. Triumph 2
catfood Must have a little more faith in my system... Austin Healey 4
tinman58 TR6 More transmission questions Triumph 3
T Philosophizing on keeping cars for more decades - prompted by a broken throttle cable Spridgets 3
W But wait, there's more...... Spridgets 12
K TR2/3/3A More on setting the timing... Triumph 12
K TR2/3/3A More electrical....parking lights?... Triumph 2
K TR2/3/3A More wiring confusion re: diagram? Triumph 5
Tinkerman TR2/3/3A 1960 TR3 A More body panel assembly questions. Triumph 5
Healey Nut more Healeys in video Austin Healey 0
T TR4/4A Making Miata seats in a TR4a look more "right" Triumph 4
TomMull GT6 More on value trends Triumph 12

Similar threads

Top