Vehicle & Technical > Defender
Td5 hesitating at junctions........
BS3143:
Hi,
The Manifolld Absolute Presssure sensor is to the left of the engine looking in from the front bunper. Remove plastic engine cover, 3 bolts, and lift clear. To the left of the head is the intake manifold, running front to back. MAP/IAT sensor is half way along on the side facing the head. Sandwiched between the manifold and the head. Unlpug the Amp connector and remove the two set screws either side. Sensor make need slight twist to break "o" ring seal. Clean, carefully and replace. Ensue seal does not drop out of the plug when reconnecting.
Ian.
Jimbo:
But it may not fix your problem...............my hesitation is back, no worse, but it's back :sad:
I'm wondering if it could be a fuel starvation problem, as it's far more noticeable when I'm sitting at an 'uphill' junction.
I've checked the cylinder balance figures at idle, and they seem stable-ish, although cylinder no2 seems to jump around from -5 to +5..........dodgy injector maybe ?
Jimbo:
Well, my 'fix' was certainly short-lived :roll:
Judging by the wet area on the floor under my clutch pedal, and the fact that my left boot has some nice fresh stains on the toe, I reckon the clutch master cylinder is about to let go.
I reckon that the master cylinder has been leaking for a while, so the fluid level has dropped a bit, which in turn is causing the 'anti-surge' switch on the master cylinder to play silly-whatsits, and is causing the hesitation at junctions - and as it's more noticable when the front of the truck is pointing up hill, a drop in fluid level somewhere would seem to be the cause.
And now that my brain has registered this possible cause, I've also realised that the gear change has been getting a bit clunky lately..........not so bad when you're driving along, but quite noticable when trying to engage first when stationary :doh:
Time to surf Paddocks splendid website I think.
age:
Thanks chaps - will do the MAP anyway. Had the new master cylinder last year....... don't you just love em!!! A
NRS91:
mine does this two... causes much hilarity for my passengers
apparently it can also be due to the anti-stall switching off when you press the loud pedal
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