Intermittent RPM skips/drops (VIDEO)
#1
Intermittent RPM skips/drops (VIDEO)
Hi,
I own a Volvo S40 T4 phase 1, 1999. It has always been in my family since new and I'm the third owner, has only run ~120K miles. Cared for, regular maintenance.
About a year and a half ago I first noticed some RPM skips while driving. Stopped at the side of the road and allowed the RPM to drop to idle I see what is seen in the attached video. It went on like this for 30s-1min and then it was fine to then appear and dissapear again a few months later, another few weeks and then another few months.
Battery, spark plugs and ignition coils are new.
Any idea of what could be causing this?
I own a Volvo S40 T4 phase 1, 1999. It has always been in my family since new and I'm the third owner, has only run ~120K miles. Cared for, regular maintenance.
About a year and a half ago I first noticed some RPM skips while driving. Stopped at the side of the road and allowed the RPM to drop to idle I see what is seen in the attached video. It went on like this for 30s-1min and then it was fine to then appear and dissapear again a few months later, another few weeks and then another few months.
Battery, spark plugs and ignition coils are new.
Any idea of what could be causing this?
Thread
Thread Starter
Forum
Replies
Last Post
Hans's Garage
Sights N Sounds
0
12-26-2020 10:00 AM