PDA

View Full Version : Hot Start Issue


Boostbyte
22-09-2015, 17:53
New poster! (less than 10 posts)

Hi All
I am a bit of a Noob and just purchased my first R5 last week after looking for a solid car for over a year.
Loving the car and puts a massive smile on my face whenever I drive it.
Got resto plans over the winter and will post pics and updates as i go.

Got a slight problem...... Already and not sure if anyone has had the same.

The car starts fine first time on choke from cold, however after a run, if I stop for a while it seems to struggle to start again and takes a while and also has a bit of spluttering extremely low idle (even with foot on accelerator)

My first thoughts were that it is a fuelling issue but after a bit of reading I found that this seems to be a fairly common problem.

If anyone knows how this can be solved or has any advice it would be much appreciated.

Many Thanks
R5MJH
22-09-2015, 18:35
they all suffer from hot start probs, but if the anti perc works then this helps, otherwise throttle to the floor to start when warm
Matt Cole
22-09-2015, 20:38
I would fit the anti perc fan mate. Ignore all the haters and no it all's. The anti perc was fitted for a reason.;)
Boostbyte
22-09-2015, 20:54
New poster! (less than 10 posts)

Thanks guys!
It does have the anti perc fan on it.
Its not the end of the world, just a bit annoying that it takes a while to start and struggles a bit for a few mins once it does.
R5MJH
22-09-2015, 21:09
does the anti perc work correctly? as matt said they were fitted for a reason
Matt Cole
22-09-2015, 21:21
does the anti perc work correctly? as matt said they were fitted for a reason

It should have two stage switching. One sensor on the turbo heats shield and one on the manifold. Either / or will trigger the fan. Run on will be 10mins plus dependant on how hot everything is. Flow rate from the fan drops off with age so check the fan function. It's a brushed motor and the rotor commutator segment insulation breaks down.

They were removed mainly due to potential fire risk of the wiring harness due to the motor seizing. Renault recalled all gtts to fit an inline fuse. I think it was 5amp. There may still be some uprated fans kicking about which delivered a greater flow rate.
Matt Cole
22-09-2015, 21:27
Other things to check are carb function, fuel relay function (run on for 5 seconds if engine not started) and fuel pump function. I would replace all due to age including fuel filter. Also consider a carb rebuild if it looks to be due (filthy and weeping fuel)
Boostbyte
23-09-2015, 15:56
New poster! (less than 10 posts)


Other things to check are carb function, fuel relay function (run on for 5 seconds if engine not started) and fuel pump function. I would replace all due to age including fuel filter. Also consider a carb rebuild if it looks to be due (filthy and weeping fuel)

Thanks Matt, will be having a proper look at the weekend. Appreciate all of the advice!
Matt Cole
23-09-2015, 16:31
No problem matey. You should not accept a starting problem. Imagine how much flack Renault would have got if they were all like that from new?