Peugeot 106 xsi hot weather

[knightspeed2001]

I have a very strange problem with my car its a Peugeot 106 1.6 xsi

during the winter there is no problems with this car at all but then when the weather hits over 30 degrees C the car will refuse to start

you can turn the key all you like but all you get is the display will light us as normal and there will be a small click and then nothing

if the car is left in the shade it will start fine but I live in a hot country where the weather is usually over 35 degrees and very little shade around and I keep getting stranded you can bump start the car and it will be ok you can put another battery on and it will make no difference and also jump starting the car of another battery makes no difference it still will not start when it is hot weather

any help would be greatly appreciated

I have had the car into several garages but it still persists if they leave it in the shade of the garage it will start so I still get charged for repairs that are not being carried out

[Deleted]

one of the relays is getting hot and distorting maybe? id be cleaning all the electrical contacts on the relays in the fuse box at the front of the car as it is going to be subject to heat from the bonnet..

[dodgerover]

Does it restart ok when the engine (and engine bay) is hot but the interior of the car isn't - like night driving for example?

[cobblers]

I don't think the starter in these is relay controlled - IIRC it's straight from the ignition switch.


Does the car have an aftermarket immobiliser fitted?

[welshpug]

as cobblers suggested, the starter is direct wired from ignition switch via probably 15 feet of wire!

the XSI is quite old now, so that wire which has been sat in a nice toasty engine bay will be pretty old so potentially has a fair voltage drop, check how many volts you are getting.

I would suggest cutting it out back to the engine bay multiplug and fitting fresh wire, also clean up all earth and positive terminals.

this is the cheap option, if this does not work, change the starter motor.

[ettorebugatti]

I had a similar thing with a 1.4 monopoint. Parked all day in the sun above 20 degrees and the starter would turn over, but the engine wouldn't pick up.

It wasn't solved, but I found out that the car would start with a push start.

Other tips I would have pursue if I still had the car:
-replace/ ultrasonic clean the fuel injector
-look for vapour lock
-extra/ repair ground from gearbox to body

Good luck!

edit: found the link to my problem
retrorides.proboards.com/index.cgi?board=techni&action=display&thread=126468

[cobblers]

From doing dozens of 16v conversion wiring looms, without fail the starter motor ring terminal on the loom would be just barely hanging on to the (I think light blue or white) wire. I wouldn't have thought this would be temperature dependent, but definitely the first thing I would check.

[ChasR]

Cobblers seems to be on the money IMO.

I would look to your starter terminals. My 205 had this. A previous specialist had fitted on the starter terminals with spring washers either side. They go so hot that they would begin to glow! If it were me, I would be cleaning up the terminals on the starter motor (and wiring at the starter) and giving them a good once over.