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post #1 of 5 (permalink) Old 12-28-2017, 08:17 PM Thread Starter
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Unhappy crank but no start

Hey guys so my bird isn't starting for me again ! It will crank over just fine but doesn't even sputter to start leaving me to initially think no spark or no fuel. Well I can hear the fuel pump priming when I turn the ignition to "On" and I know the tank isn't empty cause I just filled it. So I pulled a spark plug to see if it was sparking and it is NOt . With the help of my brother we checked to make sure the coil packs were getting power and they are. I have read a few other threads about a similar issue and even seen a few videos were the guy just unplugs the ICM and then the car fires right up, I tried this with no success. I have also read a bad coolant temp sensor could be an issue, that makes no sense to me but what do I know. The car did have an emissions code when I scanned it P1445 EVP Purge Flow Sensor circuit high input. I just figured it wouldn't make the car not start if anything just hurt fuel economy or have it run rich. When I tried to do a KOEO test on my computer said continuous memory error. I really wanna get my bird rolling again guys at the moment I'm left scratching my head on this one really. Any suggestions welcome thanks ! Also the icing on the cake is that I'm sick right now

1997 Thunderbird Lx 4.6 Liter
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post #2 of 5 (permalink) Old 12-28-2017, 08:20 PM
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Chances are it's an issue with the crankshaft sensor - or the wiring leading to it. A fairly common problem that causes a no-start condition on these cars.

Find it to the left (when facing the engine from the front) of the harmonic balancer next to the A/C compressor. To get it out you'll need to unbolt (let hang - no need to disconnect hoses) the compressor.

-Brandon
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post #3 of 5 (permalink) Old 12-28-2017, 08:25 PM
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That coolant temp sensor gave me trouble in a 96 Dodge Ram with the same symptoms your describing. I didnít believe it either but when I replaced it that beast fired right up like nothing was wrong. But I donít think these cars are prone to a ect sensor failures so I would honestly listen to the previous advice and start there.
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post #4 of 5 (permalink) Old 12-29-2017, 10:36 PM Thread Starter
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Quote:
Originally Posted by theterminator93 View Post
Chances are it's an issue with the crankshaft sensor - or the wiring leading to it. A fairly common problem that causes a no-start condition on these cars.

Find it to the left (when facing the engine from the front) of the harmonic balancer next to the A/C compressor. To get it out you'll need to unbolt (let hang - no need to disconnect hoses) the compressor.


Today I got a new crankshaft sensor and like you said the ac compressor is directly in the way to remove/install the new one. I'm having a difficult time locating the mounting bolts for the ac or even finding any info on what steps you need to do to remove it. I see two bolts on the bottom of it that I removed after an hour or so with the help of a swivel and extensions but there must be another mount up top or something. Do I need to remove the tensioner to get to it? I'm feeling pretty defeated right now on this one any knowledge will help. I took a picture of the bolts I was loosing from the bottom my god that back one sucks to get too! Thanks Terminator !
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1997 Thunderbird Lx 4.6 Liter
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post #5 of 5 (permalink) Old 12-30-2017, 07:05 AM
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I think there are three (the 3.8 has 4 but it's on the top of the engine). Two on the bottom (front, rear) and one at the top (front). I usually have decent luck getting at them with a short 10mm socket on a 1/4" ratchet, but if it's never been touched before it might be tough breaking the bolts free with only 1/4" hardware.

-Brandon
97 Laser Red Thunderbird LX 162k, Stage 2 4.6L 2v N/A | 300 BHP (255 RWHP, 290 RWTQ) | 13.95 @ 97.58 | Build details | Pics at the Lorain Assembly plant
98 Black Mark VIII 160k, stock daily driver
07 Redfire Fusion V6 SEL 178k, for the wife
Gone but not forgotten: 96 Mark VIII, 94 Cougar XR7, 93 Mark VIII

TCCoA's resident pilot since 2014
Once you have tasted flight, you will walk the world with your eyes turned skyward, for there you have been and there you long to return. -Leonardo da Vinci
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