Left Indicator Stops when brake is pressed..
Left Indicator Stops when brake is pressed..
Author
Discussion

fly fisher

Original Poster:

450 posts

270 months

Saturday 21st September 2013
quotequote all
Hi,
I have the above odd issue, any ideas at the cause, left indicator stops working when the brake brake lights go on.

Any clues.. Nothing obvious..
Thanks,
Will

tiffx19

145 posts

182 months

Saturday 21st September 2013
quotequote all
Bad earth or wrong bulbs.

v8250

2,747 posts

240 months

Sunday 22nd September 2013
quotequote all
When I saw this thread I thought this'll bring some funny replies, and sure enough...wrong bulbs. What sort were they, Daffodils?

OP, it would help if we knew what car and do not have the car's wiring diagram?

fly fisher

Original Poster:

450 posts

270 months

Sunday 22nd September 2013
quotequote all
Hi,
Its a 80's Morgan
http://www.gomog.com/allmorgan/wiring88&89.jpg
Wiring diagram
THanks,
Will

tog

4,948 posts

257 months

Sunday 22nd September 2013
quotequote all
I'd also suspect a bad earth somewhere in the rear light clusters.

4rephill

5,165 posts

207 months

Sunday 22nd September 2013
quotequote all
A Morgan you say? - Sounds like one of the vacuum tubes has gone in the wiring circuit! silly






(Don't take My post the wrong way, I love Morgans! They have proper style, dare to be different and do things their own way - Managing to be both old and modern at the same time without being a stylists retro design like so many other cars. I hope you get to the bottom of Your issue without too many problems! thumbup)

GadgeS3C

4,727 posts

193 months

Sunday 22nd September 2013
quotequote all
4rephill said:
A Morgan you say? - Sounds like one of the vacuum tubes has gone in the wiring circuit! silly

(Don't take My post the wrong way, I love Morgans! They have proper style, dare to be different and do things their own way - Managing to be both old and modern at the same time without being a stylists retro design like so many other cars. I hope you get to the bottom of Your issue without too many problems! thumbup)
Didn't realise Morgan had adopted such new fangled technology!

Seriously - as others have posted dodgy connection or bad earth, possibly at the rear light. Having a Blackpool bathtub I'm familiar with the problem wink

Hooli

32,278 posts

229 months

Sunday 22nd September 2013
quotequote all
tiffx19 said:
Bad earth or wrong bulbs.
yes

I'll vote for earths too.

v8250

2,747 posts

240 months

Sunday 22nd September 2013
quotequote all
OP, yes do trace/buzz out for poor earth connections but also trace back on the wiring for points where the brake lights and indicators share as same earthing point/wire. It's also possible you could have high resistance, and/or, a partial short due to poor fitting within the light cluster/bulb area/wiring to the offending indicator. It's often best to dismantle, clean up all areas, buzz out each circuit individually so you know they are working individually and then re-check once all back together. Good luck...

Ian Wegg

696 posts

169 months

Tuesday 22nd October 2013
quotequote all
Sorry for the delayed reply, I've only just spotted this so it's probably too late.

Check that the rear number plate lamp is securely attached. I had the same problem on my 1980 4/4, the body of the number plate lamp is the only connection between the two rear wings so if the screws holding it on are corroded the earth to the nearside becomes weak.