Question about 1998 Ford Mustang

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Cold engine starts

My wife car in the morning when she start it ... it will die and she has to do this a couple of times before it will keep running ............ also she has noticed since this problem has come up that her fuel mileage uses have gone down ....... she was getting 23 mpg to 20 mpg ....... what do you think the problem is ????

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  • wld007 Jul 23, 2008

    sorry the engine size v-8 .... 4.6 .... 5 speed

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It might be your fuel injection system. It would also help to know what size engine you have.

Posted on Jul 23, 2008

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Motor starts then dies several times when cold


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93 toyota pickup 4x4 it will stay running after I turn it on to start it up, it starts up then after a few seconds it kills


if I'm reading this right...
... the engine starts and dies within a few seconds.
... you jumpered the fuel pump test connector and it will keep running.
... you smell fuel after trying to re-start when it dies.

Disconnect the plug to the cold start injector. Even if you have an issue with the engine running then dying after a few seconds after doing this, if you don't smell fuel after disconnecting the cold start injector and try to restart it, the cold start time injector time switch may be failing.

Buy a can of starting fluid and have someone start the engine then spray short bursts of the fluid around all the intake fittings. If spraying the fluid in any particular area keeps the engine running, I'd start looking for leaks around that area.


It does sound like an AFM or COR issue considering it dies after a few seconds, but the fuel smell when trying to restart the engine may be a separate issue that needs corrected / isolated first.it will keep running.

... you smell fuel after trying to re-start when it dies.


Disconnect the plug to the cold start injector. Even if you have an issue with the engine running then dying after a few seconds after doing this, if you don't smell fuel after disconnecting the cold start injector and try to restart it, the cold start time injector time switch may be failing.


Buy a can of starting fluid and have someone start the engine then spray short bursts of the fluid around all the intake fittings. If spraying the fluid in any particular area keeps the engine running, I'd start looking for leaks around that area.


It does sound like an AFM or COR issue considering it dies after a few seconds, but the fuel smell when trying to restart the engine may be a separate issue that needs corrected / isolated first.

Mar 30, 2013 | Cars & Trucks

1 Answer

Wont start in very cold mornings, no sounds when the key is turned.. all lights work.. new starter motor.. new battery..the computer reading comes back as ok.. when the morning are not so cols starts first...


first you start with out accelerator .keep it running for a while .until warm up engine . check the out side temp. and keep clean always .
always start wit out accelerator .

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In the morning or when my 1987 vw golf sits for a while (when the car is cold) it will start right up but then dies. i have to rev it and keep the rpm's up for a couple of minutes and as it get's warm it...


There are devices in the Bosch CIS-E system not functioning that may need replaced. Most commonly it would be the thermo-time switch. This switch is also a sensor telling the ECU whether your engine is cold or hot so it would compensate fuel delivery depending on temperature. An auxiliary air regulator also opens (more air) or closes (less air) dependent from the thermo-time switch signals. It's basically telling the ECU when it's a cold morning to supply a richer air/fuel mixture or not to when it's at operating temperature. There is also a cold start valve (fifth fuel injector) that could be sticking or leaking or simply not supplying fuel during cold start up. Again, this has a higher level of understanding and special VW tools to diagnose your fuel injection problem that should be left to a VW tech to work on. It could be dangerous because fuel is involved, a single spark from static electricity could ruin your day.

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When cold in mornings when back up then shift into


Every car needs a heating engine time specially when its cold, I recomend like about 5 to 10 minutes after you start engine and before you change from P to D. If you try to start the engine first time in the morning, it's cold outside and you immediately go on run you are going to have this trouble every time. Every engine has it's operational standard temperature a 5 to 10 minutes working engine, car stopped, may guaranty this standard temperature and optimal function conditions, and also keeps a longer life of your car.

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Car starts in the morning, but does not want to accelerate...


Check your cold start curcit in the fuel injection. It puts extra fuel in to help it run when cold ( used to be a choke on old carbs) then when you restart it the engine has warrmed enough to run without the cold strt curcit.
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Good Luck !


A FixYa rating would be nice !

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You can buy them at any autoparts store . You take your pick from the variety.
Place a light 100 Watt Bulb near the battery but not too close to anything else where it might burn anything.

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Problem 3. Will get fixed because your battery won't die.

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