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So, my beloved Tortoise (with all affection I say that) decided to completely die on me at the post office last week. Normally, I do all the work on the car myself, but because I had to have it towed and checked it went to my normal mechanic.

Bad fuel pump was what I was told. I ordered a new one and it was replaced. Car could barely run (still an improvement, kinda). The battery light was now on, my normally ICE cold air was not and she stumbled more than a teenager on his first date. I have an 01 parts car, so I replaced the alternator, hoping that was the issue. It was not. Battery, alternator and starter all test good. Took it back.

Mech checked the faults and it seems it's -55 in Florida and everything looks off. So I got a new ECM/PCM and ignition lock and the car is purring! Except, I still have a battery light and my ice cold AC does not work. I am reaching for any thoughts from fellow fans for a solution. I was told CCRM, but I cannot find a location and/or replacement. The Gen 2....easy, the 500/Taurus, easy. I must be missing something easy. Can you help a brother out?

Details: 110K, 3.0 OHV, SEL. No Check engine, Battery Light ON, No A/C (condensor does not engage)
 

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Can't see the year of the car you are driving with the new forum format but as Chart said above the 01 alternator can't be used in later years. Later years used the PCM to regulate voltage level while the 01 control it internally to the alternator. That would also be the case if you swapped the PCM from the 01. Just won't work.

Maybe AC won't engage because the system voltage is low and won;t fully engage the AC clutch. Maybe connector to clutch fell off while doing alternator. Just a guess right now.
 

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Can't see the year of the car you are driving with the new forum format but as Chart said above the 01 alternator can't be used in later years. Later years used the PCM to regulate voltage level while the 01 control it internally to the alternator. That would also be the case if you swapped the PCM from the 01. Just won't work.

Maybe AC won't engage because the system voltage is low and won;t fully engage the AC clutch. Maybe connector to clutch fell off while doing alternator. Just a guess right now.
So, my beloved Tortoise (with all affection I say that) decided to completely die on me at the post office last week. Normally, I do all the work on the car myself, but because I had to have it towed and checked it went to my normal mechanic.

Bad fuel pump was what I was told. I ordered a new one and it was replaced. Car could barely run (still an improvement, kinda). The battery light was now on, my normally ICE cold air was not and she stumbled more than a teenager on his first date. I have an 01 parts car, so I replaced the alternator, hoping that was the issue. It was not. Battery, alternator and starter all test good. Took it back.

Mech checked the faults and it seems it's -55 in Florida and everything looks off. So I got a new ECM/PCM and ignition lock and the car is purring! Except, I still have a battery light and my ice cold AC does not work. I am reaching for any thoughts from fellow fans for a solution. I was told CCRM, but I cannot find a location and/or replacement. The Gen 2....easy, the 500/Taurus, easy. I must be missing something easy. Can you help a brother out?

Details: 110K, 3.0 OHV, SEL. No Check engine, Battery Light ON, No A/C (condensor does not engage)
I'll apply this to the first two comments. I am not sure about the abilities or differences regarding the alternators. I never had an issue with the original prior to the change of the fuel pump, but it was tested (replacement) and by those tests, appears to be working. It is charging the battery....how that interacts with the rest of the system I do not know. Why the old alternator (or for that matter all my new issues) that was working, stopped after the fuel pump swap....is really what I am seeking.

The AC issue,and battery light, was sorta resolved when they temp grounded at the front (fuse/relay) box. Both AC came on and battery light off, but they only tried for a sec to test. This is why they want me to replace the CCRM. Not only does it bug me, a simple fuel pump swap, created these issues, but I cannot find a CCRM for this car. Nor even the one on my donor car to test. I can find it on the Oval and the 550/Taurus for 07, also Escort and Mustang. I cannot find anything for for this gen.
 

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Check the small single wire connector on the top of the alternator, it can get loose or have corroded connection.
That was causing the battery indicator on my 99 wagon vulcan engine.
 

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I just solved a weird problem. Got lights and codes for a few different things.
Turned out to be that the AC Compressor clutch was frozen, and hanging up the Serpentine belt.
That was messing with the alternator and in turn, system voltage.
Check to make sure the AC compressor is freely spinning.
(After throwing all kinds of parts at it, I finally decided to change the S belt to a new, shorter one to bypass the compressor, and as soon as I did, all issues disappeared.

Everything is perfect!

Hope this helps.
 
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KillrRABBIT
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