GOT A PROBLEM WITH YOUR CAR? Email Graham at firstname.lastname@example.org Search our entire Ask Smithy archive at carsguide.com.au
FEW months ago the heads-up display and normal speedometer on my 1993 Nissan Bluebird SSS stopped working, but occasionally they start working again, then keep working until the car is turned off. What could be wrong?
Peter, Beaconsfield It’s likely to be a dry connection at the HUD module, or the module itself could be faulty. You could try a second-hand module or have an auto-electrician check and solder the joints for you if necessary.
I CAN confirm that you are 100 per cent correct about the master cylinder slightly holding brakes on, causing the brakes on the EL Falcon to warp prematurely.
I have had my EL XR8 for 10 years and had the same issue happen at about 150,000km.
Discs would be fried in less than 1000km after being machined.
John Nahas, email ANYONE with a brake shudder they can’t cure would be well advised to check the brake master cylinder to see if it is sticking.
STUDS TOO TIGHT
having a tyre replaced on my Holden Vectra I decided to check how tight the wheel studs were. Using the tube wrench that came with the car I could not loosen them. I was able to loosen four of the five studs after I slipped a 1m piece of tube over the wrench to give me more leverage, but there was no way I could loosen the fifth whatever I did.
The tyre company explained they are regulated to only torque the studs to 140Nm and assured me they cannot over-torque the studs. When I then asked them to loosen the fifth stud they could not move it either using their own wheel wrench. They said it appeared that the stud had fused to the alloy wheel. Can I smear a little Vaseline or grease between the stud and the wheel to stop them fusing?
Alf Balzan, email You don’t need to do anything if you tighten the studs correctly. Tell them to check their wrench and then have them tighten the studs to the correct torque while you watch.
complaint about the lights going out on Subaru Outbacks caught my eye and I thought I’d let you know that in 11 months and for no apparent reason, both low-beam globes had to be replaced on our 2010 Forester at a cost of $140. It’s not only Outback models that have the problem.
Chris, email We have had several reports from owners of Outbacks and other Subarus, and you would appear to be correct, it’s not confined to the Outback. We have forwarded them on to Subaru for investigation.
WHY GLOBES FAIL
to reports of blown globes on a Subaru Outback I suggest a higher than normal alternator output voltage is the likely cause. This could be due to a failure of the voltage regulator. Apart from a manufacturing defect, a higher than normal voltage supply is usually the only reason new light globe filaments, whether car or household, constantly fail prematurely.
A check with a DC voltmeter at an engine speed of 1500 revs should show close to 14 (+/-0.5) volts output. Which brings to mind the fact that many modern cars no longer have voltage, oil pressure, or temperature gauges to indicate to
Stop, then start: a reader has a speedo problem with a Nissan Bluebird.