Miss Fire Continues

[Barclay]

Morning,

Cheers for the help with miss fire problems before Christmas on my 92 gt4. I fitted new plugs, leads, fuel filter, dizzy arm and cap etc.

However ran the car this morning, the misfire is back at low revs and there is a winning noise coming from just above or around the throttle body area. There are a number of air hoses around here, so think there may be a crack in one of them.

Any suggestions into finding the break (if that's what it is), do any of these hoses commonly break?

Need to also get some picks posted of the gt4 to!

Cheers

:D

[daktari]

Morning,

Cheers for the help with miss fire problems before Christmas on my 92 gt4. I fitted new plugs, leads, fuel filter, dizzy arm and cap etc.

However ran the car this morning, the misfire is back at low revs and there is a winning noise coming from just above or around the throttle body area. There are a number of air hoses around here, so think there may be a crack in one of them.

Any suggestions into finding the break (if that's what it is), do any of these hoses commonly break?

Need to also get some picks posted of the gt4 to!

Cheers

:D

Unfortunately your car, like mine is fifteen years old. Due to the extreme temperatures that build up under the bonnet anything rubber is going to either perish or go brittle quite quickly. Buy yourself a few meters of silicon hose (3mm bore) in whatever colour you fancy and systematically replace all the vacuum hoses. Have a good look at everything else to determine it's condition and you should be more than half way there.

Tip..... When you.ve done that just spray round the inlet manifold with some 'easy start' This will find any air leaks that are remaining. Easy to tell cos the engine revs will increase quite dramatically for a couple of seconds. ;)

[Barclay]

Morning,

Cheers for the help with miss fire problems before Christmas on my 92 gt4. I fitted new plugs, leads, fuel filter, dizzy arm and cap etc.

However ran the car this morning, the misfire is back at low revs and there is a winning noise coming from just above or around the throttle body area. There are a number of air hoses around here, so think there may be a crack in one of them.

Any suggestions into finding the break (if that's what it is), do any of these hoses commonly break?

Need to also get some picks posted of the gt4 to!

Cheers

:D

Unfortunately your car, like mine is fifteen years old. Due to the extreme temperatures that build up under the bonnet anything rubber is going to either perish or go brittle quite quickly. Buy yourself a few meters of silicon hose (3mm bore) in whatever colour you fancy and systematically replace all the vacuum hoses. Have a good look at everything else to determine it's condition and you should be more than half way there.

Tip..... When you.ve done that just spray round the inlet manifold with some 'easy start' This will find any air leaks that are remaining. Easy to tell cos the engine revs will increase quite dramatically for a couple of seconds. ;)

Silicon hose on order tried to have a look last night. It seems to only do it when the engine gets hot. It makes a very high-pitched whistling noise! Anyway will have a go at replacing the hoses at the weekend. Will let you know how I get on.

Cheers for the help.

:)

[Perkins]

How did you get on with your misfiring problem? I have a glanza and have had the alternator changed and now it makes a whistling sound and is misfiring. Any ideas?

Cheers