Overheating, overboosting, black smoke! Urgh!

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wurlycorner
Donor 2024
Posts: 2177
Joined: 30 Oct 2012, 22:37
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Re: Overheating, overboosting, black smoke! Urgh!

Unread post by wurlycorner »

Yep, swapping of the fuel pump in the process has to be prime question mark over why it's now over-fuelling (black smoke).
Do you still have the original Lucas fuel pump? Was it still working?
If so, might be worth swapping back to that and see what it's like then.
--
Iain

'85 CX GTi Turbo s1 (met. blue)
2x '85 CX GTi Turbo s2 t1 (met. silver & grey)
'88 CX GTi Turbo s2 T2 (met. light blue)
CX DTR T2 Safari (silver)
2x '96 Xantia Activa (Black & met. green)
'01 C5 2.0 HDi LX Estate (Blue)
'11 C5 X7 3.0 V6 Exclusive Tourer
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Pug_XUD_KeenAmateur
(Donor 2018)
Posts: 1168
Joined: 22 Apr 2013, 17:24
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Re: Overheating, overboosting, black smoke! Urgh!

Unread post by Pug_XUD_KeenAmateur »

PS: dead giveaway if the Thermostat's stuck closed.... the Rad will remain cold despite the engine temp
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Stewart(oily)
Posts: 923
Joined: 07 Oct 2005, 16:31
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Re: Overheating, overboosting, black smoke! Urgh!

Unread post by Stewart(oily) »

On my S2 Xantia, late 1.9 td the fans did not kick in until 95 degrees, I was used to my BX fans chiming at 88 degrees and until I realised I was pulling the brown connector off the thermostat housing to force the fans, I only found out when on a busy motorway I watched the temp climb to 95 and then they kicked in.
BXs since 1993 built 1.9 TZD turbo, got a S2 Xantia estate, brilliant car! 2013, Xantia HDI LX 110 2000 new car with 122,000, l C2 HDI Rusty rocket, C3 Picasso HDI new to me.