TD5 engine missfire???

Sitting on motorway today at bout 70mph. Thought I would give it a wee boot to clear any cobwebs, as I don't normally even go that fast. Felt as if engine was miss firing at between 2500 and 3000 revs. Could it be the waste gate, or waste gate modulator giving an over boost? Whats the best way to check both?

Best way to check is with diagnostics - read the codes. Then go from there.

Misfiring? Don't forget to rule out the common oil down the injector loom problem, if you haven't.

pedros said:

Misfiring? Don't forget to rule out the common oil down the injector loom problem, if you haven't.

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mine was injector harness and fuel pressure regulator...

Thanks guys. Its had a new harness and FPR though.

Havnt got diagnostics. Might wait untill I've financially recovered from Xmas and splash out on something.

www.discovery2.co.uk/ Nanocom Locator, get help from your Land Rover Buddies!!!

Might save you the cost of buying one.

jackstringer said:

www.discovery2.co.uk/ Nanocom Locator, get help from your Land Rover Buddies!!!

Might save you the cost of buying one.

Click to expand...

Cheers....I've contacted a guy on the list who lives very near.

When i had this problem it was down to wastegate sticking. As its easy to access its simple to free up. I secured the spindle bewteen wastegate and solenoid with vice grips and when trying to move it back and forth it was noticeably stiff. A bit of penetrating oil and working back and forth and problem cured. Worth a try before you fork out for diagnostics.

Same problem with mine, turned out to be the vacumn pipe between the turbo outlet hose and the modulator, small crack letting air in