dc5 feeling slugish


y56vtec

y56vtec

Active Member
Joined
Jan 10, 2013
Messages
367
Hi lads. Bought a dc5 a few months back and I noticed after a month a problem. Just wandering if anyone can help. It's looses power once driven over about 4000 but not totally just feels less powerful and restricted. When I start it up its fine hot or cold. It is very responsive before I go over about 4000 but when I do it dulls down if you know what I mean. Anyone have any idea what it could be really starting to bug me. Could it be heats oak
Thanks
 
Does it have a hesitate affect when on light load?
 
When was it last serviced? Need to check if valve clearances are within spec
 
Don't know. I'd say a good while ago anyway. Is that expensive.
 
Could it be the clutch ?
You feel powerless on high rpm
Because the clutch its worn out already ?
 
Irf would valve clearance be a manageable job for the likes of me. Iv never went at the engine but would feel confident enough
 
Is she throwing up a light mate? Big miles on her? My old ep3 had a hesitation and a light on and it was the timing chain, checked distributor?
 
kellsled said:
Is she throwing up a light mate? Big miles on her? My old ep3 had a hesitation and a light on and it was the timing chain, checked distributor?
Click to expand...
Its a k series engine, so no distributor bro...
 
kellsled said:
Is she throwing up a light mate? Big miles on her? My old ep3 had a hesitation and a light on and it was the timing chain, checked distributor?
Click to expand...
Lambda sensor also causes hesitation on k series
 
y56vtec said:
Irf would valve clearance be a manageable job for the likes of me. Iv never went at the engine but would feel confident enough
Click to expand...
It's not hard, Having done a few myself it can be a bit tricky as your working in a tight space. Engine needs to be stone cold though also you need a valve clearance tool to do it or you can make one.
 
Bad fuel! The fuel quality in Ireland currently is the worst that it's ever been. You can be certain that the engine is suffering from detonation and the ecu is retarding the timing to try protect the engine. Remember these engines were designed to run on 99/100 octane fuel in Japan not the rubbish we get here at the pump.
 
No light given. Would be so much better if there was I'd know what's wrong. I'll give it a full service and get the valve clearance done. Go from there.
Vtec6000 it's a shame we can't get 99/100 octane here
 
Try doing a compression test
To see what you have accross the 4 cylinders..
I doubt it's loosing compression otherwise it would be hard to start the motor...
But who knows you gotta start somewhere / somehow and discard any posible failure on the car...
 
Yea I think I'm goin to just give it a full rebuild.what would I need head gasket water pump timing chain is that all
 
Why don't you try some octane booster or something? If what vtec6000 says is correct then (assuming the booster things actually work) this will fix it?
Wouldn't go pulling the engine apart for no real reason.
 
I was just looking under the car there and the plug off the second sensor in the exhaust the one towards the rear of the car is melted of the exhaust it's plugged out. Could that do it
 
I wouldn't have thought so tbh,
It's just there to check that the cat is doing it's job. The first one is the important one.
 
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