Temp gauge

cena

Today I noticed that that temp gauge in my punto has been going below half way when I take a sharp turn or it's idle and the heat is on.

Had the stat replaced this year. It's a punto 02.
Any ideas

I'd say stat again to be honest.

cena

Was thinking it was that again. Do you think I'll have too pay for a replacement one again

Probably, garage may reckon it's a faulty stat and if the factors / dealers they got it from agrees it may be free for the part. Batches of sh1te parts happen from time to time. May just be bad luck or may not be the stat either but I reckon it is, dropping temp gauge is generally the stat.

cena

Well let you know car in garage tomorrow. Have too get stuff sorted for the nct

Muckie

If not the thermostat the radiator is possibly at fault.

Common enough problem on cars of 10 years or older.

cena

Had rad replace 3years ago. Let's just the fox won't be doing it again

dunsandin

Airlock. Bleed the system and top up the coolant. Follow the correct procedure, bobs yure aunt.

cena

well have too head over too the fiat forum. There is a sound of water inside the car when starting it up. Would this cause it.

dunsandin

Don't bother with the forum - theres two bleed screws, one on rad, one on heater feed hose - you need to top up with a hose jammed(sealed) into the filler lid to raise the head of water being forced in - open the rad screw first, when water flows out, close it and open the heater bleed screw - keep the water going into the filler, when it flows cleanly, no bubbles, close the bleed - fannys your uncle. Common Punto prob- leads to hot/cold spots and head gasket failure. Gives em a bad name it does. Giveaway is the sloshing noise, fluctuating needle, followed by clouds of white smoke and steam, given time and a heavy right foot. And the heater needs to be turned fully to hot when doing this, and by hose I mean a piece of pipe about 24" long, not the garden hose.

Sloshing would point to airlock

fryup

alot of modern cars, don't have any temp gauges ...why is that?

cena

Is the filler got the max and min written on it. How do I keep the hose sealed in it and do I just keep putting water in it till it's clear

dunsandin

Yep - the max/min one. Get a bit of rubber hose(I use an old length of radiator top hose)that fits snugly. Fill the coolant/water mix into the hose and then bleed-keep the hose topped up to raise the head in the system - like a lot of modern cars the expansion vessel is too low to overcome the airlocks in the system without the filling point being raised. When you get clean/bubble free fluid coming out of the heater bleed screw(centre left behind head on tube going to heater matrix) you're good to go. Its a very common punto problem.

fryup

fryup wrote: »

alot of modern cars, don't have any temp gauges ...why is that?

Such as .......... ?

dunsandin

Ya know, them "no temp gauge" types:D
In fairness, a few just have a "warning, overheating light", but I can't think of any specific one at the mo.
By the way, thanks for your thanks Roverjames, its nice to be helpful, I hope Your problem gets sorted.....Oh no, hang on........:D

cena

Would it not be easier too use a garden hose too fill it with water. Can I just not bleed the system first and then put in the right mixture

dunsandin

dunsandin wrote: »

Ya know, them "no temp gauge" types:D
In fairness, a few just have a "warning, overheating light", but I can't think of any specific one at the mo.

My sister drives a Ka, a 2001 model, no temp gauge on that, anyone know any others?

dunsandin

Yeah, I was going to say fords-they're so tight they would eliminate the windscreen if they thought you could manage with sunglasses.

cena

My mothers 07 astra doesn't have one

fryup

fryup wrote: »

alot of modern cars, don't have any temp gauges ...why is that?

RoverJames wrote: »

Such as .......... ?

well my mitsubishi colt doesn't have one and my old man's citroen C3 doesn't either

dunsandin wrote: »

In fairness, a few just have a "warning, overheating light", but I can't think of any specific one at the mo.

but surely when that comes on the damage is done...no?

Ka, C3 and Colt are all budget A to B wagons, reason they don't have one is as mentioned probably cost.

dunsandin

cena wrote: »

My mothers 07 astra doesn't have one

Scandalous.. Go to AAAutograss and get her one quick, a windscreen is a must.

dunsandin

fryup wrote: »

but surely when that comes on the damage is done...no?

Only if the driver just ignores it and drives on ahead. Generally, that is what my wife does, and it works for her. It works less well for me.

Muckie

Often wondered why a few makes don't have temp guages, i'm
glad any car i've ever had has had one.
If the needle goes above half-way pull over before it gets worse.
Saved a few cars that've had.

fryup

RoverJames wrote: »

Ka, C3 and Colt are all budget A to B wagons

oooooh bit sniffy aren't we:cool:

RoverJames wrote: »

reason they don't have one is as mentioned probably cost

nah can't be cost, a temp gauge would be a very basic thing to put in a car even cheapo makes of old had one

fryup

fryup wrote: »

oooooh bit sniffy aren't we:cool:



nah can't be cost, a temp gauge would be a very basic thing to put in a car even cheapo makes of old had one

I'm far from sniffy dude, any regular readers here can testify to that Many manufacturers of cars (and most other things these days) are continuously trying to cut costs. I firmly believe any car without a temp gauge is due to pure cost cutting.