#1: Coolant overheated after car wash Author: karimali831, Location: EnglandPosted: Sat Oct 06, 2012 6:45 am ---- So I have only just had a car wash, waiting outside I noticed steam from the engine thinking it was from the pressure hose, noticeably got worse looked inside and the coolant temp was on red limit! Now I am waiting for the AA im worried the engine won't start...?? it probably was on the red for a good few minutes until steam starting forming. Could anything be damaged? There is a puddle ontop the engine
#2: Re: Coolant overheated after car wash Author: Seabook, Posted: Sat Oct 06, 2012 7:47 am ---- why you leave your engine idle anyway? straightly speaking 5-10 mins idle without fan on shouldn't cause overheat.
#3: Re: Coolant overheated after car wash Author: karimali831, Location: EnglandPosted: Sat Oct 06, 2012 8:04 am ----
Seabook wrote:
why you leave your engine idle anyway? straightly speaking 5-10 mins idle without fan on shouldn't cause overheat.
Hmm it still is overheating, aircon is not giving cool air and the fan won't turn.
Checking the fan relays.
#4: Re: Coolant overheated after car wash Author: E5GDM, Location: EssexPosted: Sat Oct 06, 2012 8:09 am ---- Check your coolant.
#5: Re: Coolant overheated after car wash Author: Seabook, Posted: Sat Oct 06, 2012 8:12 am ---- i didn't got radiator fan and i never overheat to redline.
#6: Re: Coolant overheated after car wash Author: karimali831, Location: EnglandPosted: Sat Oct 06, 2012 8:15 am ---- There is a lot of corrosion on the fan relays and wiring, maybe enough water got in there to stop the unit working. There are two relays, anyone know if one is aircon?
#7: Re: Coolant overheated after car wash Author: karimali831, Location: EnglandPosted: Sat Oct 06, 2012 8:41 am ---- After checking the relays:
Looks like I must also get a new fan wiring harness as the sockets and wiring look corroded. Anyone know the part names please?
#8: Re: Coolant overheated after car wash Author: Seabook, Posted: Sat Oct 06, 2012 8:48 am ---- the relay is 6547 TX
#9: Re: Coolant overheated after car wash Author: MrBSI, Location: What's it to you? ? ?Posted: Sat Oct 06, 2012 8:51 am ---- Those relays should clean up easily enough if your careful, just dont snap any of the terminals of
#10: Re: Coolant overheated after car wash Author: Seabook, Posted: Sat Oct 06, 2012 8:53 am ----
MrBSI wrote:
Those relays should clean up easily enough if your careful, just dont snap any of the terminals of
i always wonder if they are just normal 5 pin relay?
#11: Re: Coolant overheated after car wash Author: MrBSI, Location: What's it to you? ? ?Posted: Sat Oct 06, 2012 9:04 am ----
Seabook wrote:
MrBSI wrote:
Those relays should clean up easily enough if your careful, just dont snap any of the terminals of
i always wonder if they are just normal 5 pin relay?
I've got some stashed away somewhere in my stock of Peugeot parts, if I ever get bored one day ill take one apart
The pin out on the terminals will show if its just a normal 5 pin relay.
#12: Re: Coolant overheated after car wash Author: karimali831, Location: EnglandPosted: Sat Oct 06, 2012 9:07 am ---- Can I get in halfords? Need to fix today, uni etc. I can drive but in traffic is no good. Age problem, wish I thought of it before
#13: Re: Coolant overheated after car wash Author: V9977, Location: Athens, GreecePosted: Sat Oct 06, 2012 10:16 am ----
Seabook wrote:
MrBSI wrote:
Those relays should clean up easily enough if your careful, just dont snap any of the terminals of
i always wonder if they are just normal 5 pin relay?
Yes they are, and no protection diodes on the coil either. (plain SPDT 12V)
Trouble if you clean them is because the top nickel-plating is gone, the copper will just oxidize green again in
no-time. I always bin those triumphantly and use silicon grease spray for future protection on the contacts.
#14: Re: Coolant overheated after car wash Author: Edward, Location: In the garagePosted: Sat Oct 06, 2012 10:56 am ---- The wiring terminals will be corroded too and might have even corroded right through enough to break the wires.
Ideally it needs the bumper taking off and a thorough clean up /repair making.
#15: Re: Coolant overheated after car wash Author: karimali831, Location: EnglandPosted: Sat Oct 06, 2012 12:00 pm ---- When you turn air con on you hear "click" noise, if this is from the relay then relays are OKAY?
#16: Re: Coolant overheated after car wash Author: Edward, Location: In the garagePosted: Sat Oct 06, 2012 12:18 pm ---- That's the clutch on the compressor switching on.
#17: Re: Coolant overheated after car wash Author: anton1989, Location: west midlandsPosted: Sat Oct 06, 2012 3:23 pm ---- this is what happend to mine, very common
got a second hand one and new relays
#18: Re: Coolant overheated after car wash Author: karimali831, Location: EnglandPosted: Sun Oct 07, 2012 10:33 am ---- hopefully the problem is as small as this, you know how I can check it is not the water pump?
#19: Re: Coolant overheated after car wash Author: Seabook, Posted: Sun Oct 07, 2012 10:51 am ---- check the bottom and upper coolant pipe.
if both are warm then water pump is fine
#20: Re: Coolant overheated after car wash Author: karimali831, Location: EnglandPosted: Mon Oct 08, 2012 11:50 am ---- I replaced the wiring harness and relays but the fan only comes on at 105c ?? It is always go up to 105 until fan triggers and drops to 98c. Any thoughts? Thanks all for the help!
#21: Re: Coolant overheated after car wash Author: Edward, Location: In the garagePosted: Mon Oct 08, 2012 12:52 pm ---- Lookslike the high speed fan is working but the relay controlling the slow one is crusted up.
#22: Re: Coolant overheated after car wash Author: karimali831, Location: EnglandPosted: Mon Oct 08, 2012 12:59 pm ----
Edward wrote:
Lookslike the high speed fan is working but the relay controlling the slow one is crusted up.
I am sure I wired it all correctly, got two new relays also.
I can only think the resistor needs changing, it looks fine, but if the high speed fan works so the resistor must work?
#23: Re: Coolant overheated after car wash Author: Edward, Location: In the garagePosted: Mon Oct 08, 2012 1:09 pm ---- High speed fan doesnt use the resistor. The low speed fan uses the resistor to restrict the current to the fan.
If you remove the resistor and bridge the wiring and the fan spins at high speed you'll know the resistor is faulty.
#24: Re: Coolant overheated after car wash Author: karimali831, Location: EnglandPosted: Mon Oct 08, 2012 1:12 pm ----
Edward wrote:
High speed fan doesnt use the resistor. The low speed fan uses the resistor to restrict the current to the fan.
If you remove the resistor and bridge the wiring and the fan spins at high speed you'll know the resistor is faulty.
thanks!
so apart from the resistor, with all wiring and relays and fan working at high speed can it be anything else?
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it probably was on the red for a good few minutes until steam starting forming. Could anything be damaged? There is a puddle ontop the engine
