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275 Posts
I desperately need help now!!!
MY 2000 P38 4.6 V6 HSE 150.000 km
hmmm had an airpocket for some time ago - engine got hot twice for 30 or so seconds - turned off.... anyway got it fixed and everything in that context is OK... but since then the car have had a very rough uneven idle when cold for 30 seconds - and it sounds like someone is banging with a big hammer on the engine itself somewhere in the front of the engine - just changed the oil (Castrol Edge 10W60 and oilfilter - always used that oil and LR-people says it's ok even here in Scandinavia) when the engine warms up the idle becomes more even - but never really super - just pulled one lead at a time - nice even spark.
After 30 seconds the banging goes away but if rev it quickly - just a quick pull in the cable I can get the banging back - it's only a quick bang but still - it should not do that!!!!
When I use the Webasto Preheater the idle is a bit better and the banging is not so loud either... Douh?!
I still haven't had time to change the chain and waterpump and belt tensioner - but don't expect that to help a lot either......
Could it be a camshaft bearing or broken crankshaft??? Please don't say it is!!!!!
Thinking about taking the belt of and running the engine in idle to se if it changes anything (so I could outrule waterpump, power steering pump, Alternator etc)
Any suggestions are VERY welcome - will have to do something soon - before the car breaks down - more than it already have....
Best regards
Ferdinand
MY 2000 P38 4.6 V6 HSE 150.000 km
hmmm had an airpocket for some time ago - engine got hot twice for 30 or so seconds - turned off.... anyway got it fixed and everything in that context is OK... but since then the car have had a very rough uneven idle when cold for 30 seconds - and it sounds like someone is banging with a big hammer on the engine itself somewhere in the front of the engine - just changed the oil (Castrol Edge 10W60 and oilfilter - always used that oil and LR-people says it's ok even here in Scandinavia) when the engine warms up the idle becomes more even - but never really super - just pulled one lead at a time - nice even spark.
After 30 seconds the banging goes away but if rev it quickly - just a quick pull in the cable I can get the banging back - it's only a quick bang but still - it should not do that!!!!
When I use the Webasto Preheater the idle is a bit better and the banging is not so loud either... Douh?!
I still haven't had time to change the chain and waterpump and belt tensioner - but don't expect that to help a lot either......
Could it be a camshaft bearing or broken crankshaft??? Please don't say it is!!!!!
Thinking about taking the belt of and running the engine in idle to se if it changes anything (so I could outrule waterpump, power steering pump, Alternator etc)
Any suggestions are VERY welcome - will have to do something soon - before the car breaks down - more than it already have....
Best regards
Ferdinand