1.8TD Strange power drop

[antcull]

Hi I have a strange problem with my van i was hoping someone ma have some advice with.

I have a 1999 escort van wit a 1,8 TD (top mount intercooler) in it (running pre pats)

runs fine and pulls well in 1st then in 2nd, 3rd, 4th and 5th when you hit about 1500 - 2000 rpm

it is as if you hit a "wall" that if you keep your foot on the throttle you can (sometimes) push through

other times you can not so change up then a few mins later when in 2nd or 3rd it will cut out,

so drop it down a gear and bump it and it re-starts and it has confused the hell out of me.

Its had a new fuel filter (was doing this before filter change), Battery is good, stop valve is good and wire`s been renewed, alternator is good

 

any advise is much appreciated,

Thanks in advance,

Tony

[ganges]

no expert, but might be worth trying the lamba sensor

[antcull]

Does not have a lambda sensor on it as it has no ECU it is running pre pats (very very basic) thanks anyway.

[scottybo]

maybe a boost leak? i had a hole on the air pipe between the carb and the engine on my bike and it behaved exactly like that until i replaced the pipe Edited September 6, 2013 by scottybo

[antcull]

Thanks will check when the rain stops

[supersport]

may sound silly, but have you checked the throttle cable on the pump? see if there is any slack on the cable

then adjust it. had it on a mondeo years ago, owner asked what i'd done to it as it went better!

[antcull]

yeah I adjusted throttle cable as soon as I got the van back (sold it to my mate and regretted it the moment I gave him the key lol)

its had a new fuel filter and lift pump and fuel is getting to the injectors so will check boost pipes tomorrow and go from there.

[antcull]

Ok sorted it, previous owner (my mate) replaced the fuel filter but nicked the top rubber seal so it was sucking in air on full throttle and loosing power. I have replaced the filter and all is well