Poor starting, especially when hot, even worse when filled with fuel

[wicked1]

We have had a few gransports and QP's in recent for not starting very well when hot mainly. Filling the vehicle with fuel acually aggrevates the problem enormously.

After much searching around the fuel system we have found that the fuel vapour valve gets stuck open, causing this issue. Its extremely easy to test and minimal effort to replace. The cause is the fuel vapour valve gets cover in stick fuel vapour and eventually it just gets stuck open. Do not be fooled into thinking it is ok just because you feel it work, it clicks when being operated.

It is located on the N/S inner wing under the bonnet on both vehicles.

Hope this helps

Mathew

 

[lozcb]

Dot appear to have any starting probs on my GS Mathew , but still havent solved my lazy throttle response , been the same since i owned the car , car starts runs and drives fine , but the throttle response is really lazy and retarded compared to my 4200 , which is mega responsive in comparrison any ideas thoughts , ive cleaned the maf sensor, chaged to new plugs etc , wondered whether it might be the throttle pot , went to order one from D Askew and he advised its rarely one of those, interested to what you thoughts might be

regards loz

 

[Parisien]

Good heads up Matthew, thanks.

P

 

[hunta]

Mathew is this just GS / QP's or 4200's as well?

 

[conaero]

Nice one Mathew, many thanks for thinking of us.