Results 1 to 6 of 6

Thread: Misfire on cylinder 5

Threaded View

Previous Post Previous Post   Next Post Next Post
  1. #1
    Join Date
    Jun 2009
    Location
    Shelburne, VT, USA
    Posts
    170

    Default Misfire on cylinder 5

    I picked up a Disco II wit's a misfire on cylinder 5. No overheating or signs of head gasket leak, but had visible corrosion/whitening on the spark plug connection and inside the plug wire at the plug end, so replaced the plug wire w/new genuine from our generous hosts. Didn't resolve the issue, so I tried cleaning the spark plug contact and taking it out to see if it looked fouled (a bit of carbon, but didn't seem too bad, though I'm a bit inexperienced in that area). Still misfiring on cylinder 5.

    My next step is a new plug when the FLAPS opens tomorrow. Then, coil? Can just the one coil be replaced or do I have to do the whole pack?

    Update: new plug didn't solve the issue. I guess I'll try a coil next, but am starting to fear that I'm putting more good money to waste and that I've got a head gasket leak. Not noticing any obvious signs like steam in exhaust, overheating, etc. Can't tell if I'm getting excess pressure in the coolant and don't think I can smell exhaust in the coolant reservoir. Any other easy at-home tests or just go for a new coil?
    Last edited by morgant; 08-11-2016 at 01:47 PM. Reason: Updated diagnosis steps taken.
    rikuwoiku — to travel overland.
    1982 Series III 88" (RHD w/2.8L Daihatsu diesel)
    2002 Discovery II SE

    CentreSteer.com — A podcast by, for, and about Land Rover owners. (Panelist & Content Producer)

    SeriesParts.com — A master list of parts, part suppliers (our gracious hosts included), and repair shops for Series Land Rovers.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
About us
Unparalleled product knowledge. Our mission is to support all original Land Rover models no longer supported by your local Land Rover franchise. We offer the entire range of Land Rover Genuine Parts direct from Land Rover UK, as well as publish North America's largest Land Rover publication, Rovers Magazine.
Join us