Thread: stutter at 3500 rpm D2aTD5

I had a similar issue but happend under hard acceleration. Turned out to be a buggered boost solinoid. Other wiser forum-ites will know more though


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Originally Posted by daddyrat

Hi there. Discovered yesterday a weird thing. If I keep the revs constant on 3500 or thereabouts the engine starts to stutter as if starved by fuel. No misfire, no problems starting hot or cold, and no noticeable while accelerating normally. Any suggestions on what it may be? Thanks

may I say, the solution is don't keep the revs constant at 3500, not trying to be smart, but if we look for problems we will find them. If I hear a different noise, I turn the radio up, most of the time. Works for me. I have a 1999 TD5 with 348, 847 km's on the clock. Worry about the important things, or you will get an ulcer. Bob

I suppose you're right. We are, after all, talking Land Rover here
and otherwise, I have to say, it's a beautiful car

sounds like overboost to me. I had the same problem a while back, replaced the turbo wastegate modulator valve & no more problem. About $70 & 15 minutes work.
However this may not be whats happening with you, as my issue occurred under hard acceleration, usually at around 3000 revs.
Search my thread "surging td5" & you'll find a bit more info
Cheers, Alex

The engine is not actually surging. It just ticks along albeit a bit intermittently. It does not drop speed, it will accelerate if the pedal gets pushed down, it sounds and feels like there is a shortage of diesel but I reckon I'll have to go with the previous advise or hook up a nannocom or similar. Anyway, keep it coming

daddyray
Not being disrespectful, but why are you revving her so hard anyway?. 3000 is usually my limit and I regularly tow 2300KG with no problems. It pulls just as hard @ 2700-3000 as it does at higher RPM's. Just asking.
Regards
Robbo

well it was a test and I have just tested again and it does seem to be the surge described elsewhere. It happens under hard acceleration above 3500 revs or so. I usually do not rev that high either. That's why someone else actually discovered this phenomenon. Will have a fiddle tomorrow trying to isolate the fault.
I know it's not very representative to normal day to day use but then it should rev freely to 4500 or so if all is ok. Anyway thanks for all the help

Originally Posted by robbotd5

daddyray
Not being disrespectful, but why are you revving her so hard anyway?.

Dunno about anyone else, but I rev that hard because its an auto & it kicks down if I give it a real boot full