Virtual Mechanic

Gary
State & Suburb QLD Nanango

Type of Vehicle ford 
Model Telstar tx5 ghia 2.5lt v6
Month/Year 7/1996
Kms 240,000
Problem When I start car in the morning it seems it is not running on all cylinders but if you put your foot on the accelorator and rev to 1200rpms it starts to run normal if you leave your foot their for about 4min it then comes good I have changed plugs,leads,airfilter and 6mounths ago fuel filter also a year ago I had a new dissy and a new fuel pressure regulator installed can you help me as Im and old age pensioner and it starting to get very costly at the mechinics they all say diffrent things to me. 

Hi there,
 
The thing that comes to mind is the injectors, or the cold start injectors if applicable, have you ever had the injectors serviced this means taken out and ultasonic cleaned and tested, now before you do this ring Ford and ask them if there is a quick test on the analyser to check if the cold start injectors are holding residual pressure over night and the TPS is not too dirty to effect the air flow sensor.
 
I’m sorry as this next step may prove to be expensive or try to find an EFI specialist that can tell you the answer before spending your money
 
All the best
 
Darren

Darren Thankyou for replying so quick I was wondering if I got a rail flush would that help I had one 6 months ago then the leads packed in around months ago and I had to drive 270km to get home would that have clogged the injectors as it started to miss every now and again until now where it does it every morning the rail flush is $100 as I live in the bush.
thankyou again Gary

Gary
From my experience its the injector that needs to be cleaned now many years ago Toyota had the best additive on the market but I’m not sure about now but my point is give your car a nice glass of wine (Fuel injection additive) if you go to toyota it must be Toyota injection additive not an after market additive that they are selling on the side.
Now Gary if you come accross a good EFI specialist up there in the nice worm Queenland please let my readers know.
 
In conclusion if you try an additive it might help but if you get the injectors cleaned and tested this should show you evidence of a leaking injector
 
Darren

Rose
Message Hi
I would like to know if you have the information on how to reset the radio security code after putting in a new battery. The radio is a Fujitsu Ten
If you can help it would be greatly appreciated.

The car is a 1992 Toyota Camry it has a Fujitsu Ten radio in it.
Thank you
Rose 

Hi Rose
 
Try 1234 or ring Toyota and they hopefully might tell you the code if you can prove ownership
 
 
Regards
 
 
Darren

Amy
Message Hey,
I have a Daewoo Nubira 1998 Sedan.
Recently I just blew something to do with the timing belt.
I was just wondering,
Howwould you know if I have bent the pistens??
Is there anywhere to look to see if I have?
Because I dont want to spend money replacing the timing belt then realising the whole engine is damaged.
Please help !!
Amy,
 
Not looking good without vital information i.e. Type and size of engine, from the research it is pointing towards an expensive repair
 
Darren

Contact Me

Name stuart

Type of Vehicle Holden
Month/Year 2003
Model XC.Combo
Message Is it possible to get an electrical schematic diagram without paying a fortune for it??
Stuart,
 
What part are you after and have you tryed ellery books, this writer is very good
http://www.ellery.com.au/
 
Darren

muriel
 
Type of Vehicle Hyundai
Month/Year 1994
Model excel
Message How do you fix a leak around the input shaft of manual transmission,do i need to replace both shields and bell housing on a 1994 Hyundai Excel?
Muriel
 
This is a good question, because I need to establish where the oil is leaking
Are the CV boots torn if so they can be replaced.
 
If the seal is leaking where the CV Shaft fits into the transmission then replace the leaking seal
To establish where the leak is starting, you need to steam clean to see where its leaking.
 
I hope this helps

PURPOSE
The tank is designed to store liquid gas, and depending on the country, may come in many different shapes and sizes, providing different capacities.  An LP gas tank is checked before it is sold and is best checked every ten years for leaks or wear.  Gas tanks are designed to hold eighty percent of their capacity to allow for expansion.

THINGS TO LOOK FOR
An LP gas tank may be checked with warm, soapy water for leaks as well as dents.  It is important that the tank is positioned correctly to allow the gauge to maintain an accurate measure of the liquid gas inside the tank.  Tanks must be secure and the gas tap must be easy to turn on and off. 

IS IT EXPENSIVE TO REPAIR?
If a gas tank requires replacement it’s best to purchase a new tank or a reconditioned tank as this will show a certified ticket to ensure it is a safe tank to use.

TEMPORARY REPAIR AND LONG TERM REPLACEMENT
If the gas tank appears to be leaking, turn the gas tap off and take it to a qualified gas installer for a check up.

PURPOSE
The petrol solenoid is designed to allow petrol through it when energised, may be applied when starting  up the vehicle on gas.  Some vehicles fitted with electronic fuel injection may automatically start up on petrol, then when the rpm reaches 2000 the engine will switch over to gas.  Therefore it is important to keep at least a 1/4 tank of petrol for this reason.

THINGS TO LOOK FOR
Petrol solenoids are only as good as their connections.  Petrol solenoids are usually mounted to a heater hose or are just freely connected to the fuel line making it very important for the earth and the positive to have enough slack to move with the solenoids.  So when you rev it, the engine moves and so will the solenoid.  A common problem is the connections become loose or the terminals are just crimped and not soldered then it is just time before the petrol solenoid will not operate.

IS IT EXPENSIVE TO REPAIR?
If you know how to solder terminals, this is the cheapest way.  Otherwise visit your local mechanic or auto electrician.  The cost is around $30.00 to solder a few joints.

TEMPORARY REPAIR AND LONG TERM REPLACEMENT
If it seems to be impossible to get the power to energise the petrol solenoid and you just want to drive to your local repairer then carefully connect a fuse wire from the battery to the petrol solenoid to drive it on gas.

PURPOSE
The mixer is designed to mix the low pressure gas with the correct measure of air creating a specific air fuel ratio, providing a combustible mixture ready for the combustion chamber.

THINGS TO LOOK FOR
The mixer rarely goes wrong so long as it is connected correctly.  Over a period of time the air gallery lodged under the tubing may work loose and the tubes need to be resecured.  If the tubes are cracked on the ends it will be necessary to replace these rubber tubes.

IS IT EXPENSIVE TO REPAIR?
If the mixer is 5at fault it may cost around $60.00 fitted.

TEMPORARY REPAIR AND LONG TERM REPLACEMENT
If the large rubber tubes are torn or cracked it may be possible to gaffer tape them so you can drive to your local qualified gas installer or spare parts outlet.

PURPOSE
The gas solenoid is designed to allow liquid gas to pass through when it is energised.  The gas solenoid is energised by 12 volts supplied from the safety switch.  The gas solenoid switch is most reliable when the earth connection is secure and the positive connection to it is soldered.  The gas solenoid may also carry a filter.  This filter ishould be checked every 10,000Kms to prevent it from clogging up. 

THINGS TO LOOK FOR
A very common problem is the gas solenoid bracket, which is mounted to the body, becomes slightly loose and the mounting screws holding the earth lead may also be loose, making it a bad earth connection.  Another common problem is the positive terminal connection is not soldered to the positive lead making it a bad connection.  It is only time before these problems prevent the liquid gas from flowing through.  When travelling at a moderate to high speed you notice that the vehicle slows down,  it might be a sign that you are low on gas or it may be a gas filter clogging up.

IS IT EXPENSIVE TO REPAIR?
Servicing the gas solenoid filter or resecuring the connections is not expensive.  If you get a qualified gas installer to do this, make sure they do it properly, so you are not going back 2 or 3 times with the same problem.  It is very important to have all connections soldered.

TEMPORARY REPAIR AND LONG TERM REPLACEMENT
If the power has trouble coming through from the safety switch don’t bypass it as it is the safety switch, which in case of an accident, will turn off the gas if the engine stops.

PURPOSE
The gas converter is designed to receive high pressure liquid petroleum gas and convert it to a low pressure gas.  This is achieved by water passing through this component to prevent it from icing up.  The gas converter consists of two chambers, a high pressure chamber and a low pressure chamber attached to a diaphragm which is connected to a needle valve to allow the low pressure gas to the mixer thus mixing the air at the correct ratio ready for the combustion chamber.

THINGS TO LOOK FOR
The converter requires the cooling system not to leak because the converter uses the flow of water to prevent the converter from icing up.  This is the most common and dangerous scenario because the icy converter body may distort, allowing high pressure gas through the unit.  If you find the converter icy turn the gas tap off at the tank and get it attended to  A.S.A.P.  Another common problem is the cooling system connections begin to leak.  Get it attended to A.S.A.P. as this will affect the function of the converter.  Another problem is the converter malfunctioning, if it does this it will stop.

IS IT EXPENSIVE TO REPAIR?
Repairing or replacing a converter may cost around $180.00 depending on the brands.  Because there are so many parts in a converter you can go either way, repair or replace it.  But it has to be done by a qualified gas installer.

TEMPORARY REPAIR AND LONG TERM REPLACEMENT
If it is found that the converter is icy do not pour hot water over it as this may crack the converter body.  Allow the temperature to go down by itself with the gas tap turned off at the tank.  This may take about 30 minutes to an hour.