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post #1 of 8 (permalink) Old 08-28-2011, 02:46 PM Thread Starter
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Hard to start

I have a 1991 T-bird 6 cylinder. Its does not want to start and this happens when cold or warmed up. Once it starts it runs great. However, I decided to do the following:

1. replaced spark plugs with Motorcraft copper plugs.
2. replaced cap and rotor.
3. replaced spark plug wires.
4. replaced battery

The car cranks fine but it takes 3, 4, or 5 times cranking before it starts.

Again, once it starts the car runs great.

Any idea what the problem could be? I am a novice when it comes to car repairs and hopefully it will be something I can do.

Thanks in advance.

Larry
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post #2 of 8 (permalink) Old 08-28-2011, 03:20 PM
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Other maintenance I don't see

1) Clean MAF
2) New air filter
3) Check IAC, replace if necessary
4) Since it's a 1991, it's not as easy as a 96/97 (or 94/95 V6), but a log of what the ECM is doing while you start would be nice, I'm sure.

RwP
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post #3 of 8 (permalink) Old 08-28-2011, 03:56 PM
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check your crankshaft position sensor, see if the wires are correctly plugged and clean the connector sometimes they get loose

Alfonso De Anda
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post #4 of 8 (permalink) Old 08-28-2011, 04:29 PM
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The non-EDIS 3.8s don't have a crank sensor.

As to the OP's problem... have you verified spark while cranking? And have you checked fuel pressure at the fuel rail?

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post #5 of 8 (permalink) Old 08-28-2011, 04:49 PM
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Quote:
Originally Posted by theterminator93 View Post
The non-EDIS 3.8s don't have a crank sensor.

As to the OP's problem... have you verified spark while cranking? And have you checked fuel pressure at the fuel rail?
oo my bad i dont know much about v6 birds sorry

Alfonso De Anda
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post #6 of 8 (permalink) Old 08-28-2011, 04:56 PM
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Quote:
Originally Posted by theterminator93 View Post
As to the OP's problem... have you verified spark while cranking? And have you checked fuel pressure at the fuel rail?
Pull the vac line into the Fuel PRessure Regulator and check for fuel. Common fail.

Cycle pump with key on several times. Symptoms better, or worse?

Floor gas pedal while cranking. Symptoms better, or worse?

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I do it just because I still want to know HOW and WHY!!! Quit learning=die. Be informed as to WHAT, rather than learn,=brain-dead already.
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post #7 of 8 (permalink) Old 08-28-2011, 07:01 PM Thread Starter
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Thanks guys for all the great responses. I hope to work on the car next weekend and hopefully the car won't breakdown before that.


Larry
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post #8 of 8 (permalink) Old 08-28-2011, 07:49 PM
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Dont forget the fuel filter

Will

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