Car Hesitates Under Acceleration

[Adrian Marks]

Hi

I have a 1994 440 1.8 (single point injection). Just recently it has started
hesitating when accelerating. It seems to occur when the engine is under
load (ie, accelerating in 3rd from 30mph). Accelerating up through the gears
does not seem to be a problem.

The best way I can describe it is that the car gives a 'hiccup' (maybe once,
maybe more), but once the revs have climbed a little all seems well.

Any ideas where I should start looking?

Ade

 

[Tim Hobbs]

Hi

I have a 1994 440 1.8 (single point injection). Just recently it has started
hesitating when accelerating. It seems to occur when the engine is under
load (ie, accelerating in 3rd from 30mph). Accelerating up through the gears
does not seem to be a problem.

The best way I can describe it is that the car gives a 'hiccup' (maybe once,
maybe more), but once the revs have climbed a little all seems well.

Any ideas where I should start looking?

Ade

Ignition system would be the first point of call I think.

How old are the spark plugs, leads, dizzy cap etc?

It could be lots of other things, but I'd start with changing the
plugs and leads unless they are fresh.
--

Tim Hobbs

'58 Series 2 88" aka "Stig"
'77 101FC Ambulance aka "Burrt"
'03 Volvo V70

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