2.9 ltr S3 problem

[TJC46]

Hi guys spotted this posted in the general Tvr section so tried to copy and paste to here, but the link won't work for some reason.

Check it out in the general Tiv section.

Should be an easy one for you lot with all your knowledge.

Edited by TJC46 on Sunday 24th May 20:54

[sunnygym]

Original post...

Intermittent problem of losing power in really hot whether if not on a constant move, the engine is not overheating. Will tick over fine but cuts out as soon as you try to move. Leave half hour to cool down and ok

Replaced all the coolant
Replaced coil
Replaced fuel filter
Had a diagnostic
Radiator rebuilt

Fitted an override fan but don't know if this has made any difference yet.

Car has been serviced and Mot'd.

Any ideas?

(Posting on behalf of my dad so bear with me on replies)

[TJC46]

TJC46 said:

Hi guys spotted this posted in the general Tvr section so tried to copy and paste to here, but the link won't work for some reason.

Check it out in the general Tiv section.

Should be an easy one for you lot with all your knowledge.

Edited by TJC46 on Sunday 24th May 20:54

Bump.......anyone got any ideas

[DamianS3]

Apart from the when hot I would suggest fuel pressure... Ie fuel pump on its way out..

When mine failed it would start and run ok at idle but had no power and would cut out under load..

Cheers

Damian s3

Edited by DamianS3 on Thursday 28th May 18:40

[TVRees]

sunnygym said:

Original post... the engine is not overheating. Will tick over fine but cuts out as soon as you try to move. Leave half hour to cool down and ok

There could be many causes to this problem and you'll need to test various parts of the system one by one and gradually eliminate those that are working OK.

Could be a fuel pump problem and you should also check and clean the air intake system (if not a S3C car), the air flow and air temp. meters. Test also the fuel temperature sensor. All are inputed to the EEC and could be giving spurious readings when hot. Also check the vacuum hoses and is it possible that your coil is getting too hot ? Just a few ideas ........

Hope you can solve it soon.