1.9WBX Stutter at full throttle

[T25Convert]

Hi,

Got a rather irritating issue with the van. It runs fine 99% of the time.

However, flat out in fourth going up hill (or third if its a really big one) on motorways it sometimes, but not always, coughs a few times and looses power. Ease off the revs and after a few seconds its all fine again.

I'd put this down to the fuel pump, but have a new one now. Changed filter too, but still does it.

I reckon it may be fuel starvation as its only flat out, but before I start looking over every inch of the fuel lines is there anything else it could be?

All suggestions great fully received!

Cheers,

Alex

[Aidan]

worn pushrod on fuel pump, should be 100mm long iirc

[T25Convert]

Cheers Aidan,

I checked pushrod whilst changing the pump - 99mm.

I figured this was close enough, but at a tenner I guess it makes sense to change it if only to rule it out.

I hate problems that you can't replicate on the drive, makes fixing them that much harder!

Cheers,

Alex