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05-18-2005, 01:03 PM
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#1 |
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Registered User
Join Date: Apr 2004
Location: Burleson, Texas
Posts: 55
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Ignition Module Question
Last week my truck motor would turn over and act like it wanted to start (strong turning), but just wouldn't fire. A few of you suggested I change the ignition module, which I did and it started like it was brand new. Now my wife just called and said it's acting like it did...turns strong, but just not getting fire. Which makes me think if it replacing it worked, I should do it again. However, even though it's only about 20 bucks, I don't think it's normal to have to replace it weekly. Does anyone have any idea of why this puppy would go bad within a week?
Thanks again folks! 
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05-18-2005, 01:04 PM
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#2 |
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Registered User
Join Date: Apr 2004
Location: Burleson, Texas
Posts: 55
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oh yea. it's a 454 with an HEI distributor if that helps anyone.
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05-18-2005, 01:16 PM
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#3 |
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Garage Queen Material
Join Date: Oct 2002
Location: USA
Posts: 4,129
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you're wrong, it is normal to replace it weekly.
ok, not really. sorry i cant help any more 
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05-18-2005, 01:25 PM
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#4 |
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Registered User
Join Date: Apr 2004
Location: Burleson, Texas
Posts: 55
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OK ocbaud...since it's normal, I'm off to replace it again, ha! I think I'll buy a spare too.
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05-18-2005, 01:25 PM
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#5 |
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Registered User
 
Join Date: Apr 2004
Location: Sacramento
Posts: 3,737
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maybe a loose connection?
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05-18-2005, 01:33 PM
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#6 |
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Shadetree Mechanic
Join Date: Oct 2002
Location: Youngsville, NC
Posts: 100
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Make sure you clean the mounting service
& apply liberal amount of heak sink compound.
Then make sure to apply plenty of torque to the mounting screws to press out any extra compound. Heat is what normally kills the module, also a bad coil can cause the module fail if it is parially shorted. Good Luck
__________________
Dave M. (Hacksaw) 86 C10 Scottsdale LWB, 4.3L, Edelbrock 1904, K&N, 700R4, 3.08 Auburn Performance 89 GMC S-15 Extended Cab 4x4, 4.3L, FI 98 K1500 Xcab, 5.7L, 3.43 Gov-Lok |
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05-18-2005, 02:10 PM
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#7 |
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Registered User
Join Date: Oct 2002
Location: Phoenix, Arizona
Posts: 4,703
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If you determine it is the module or decide to change the module again:
Ever thought about trying the MSD Module? I had a lot of module problems in the past and switched to a MSD module and didnt have any more problems. Then I switched to the whole MSD distributor. I just noticed the old one isnt available, now it has a rev limiter, sweet! SummitRacing.com 
__________________
* AVOID: LOPER'S PERMORANCE / LOPERSPEED.COM OF PHOENIX, AZ & COTTMAN TRANSMISSION * Last edited by PHOENIX; 05-18-2005 at 02:11 PM. |
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05-18-2005, 02:33 PM
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#8 |
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Registered User
Join Date: Apr 2004
Location: Burleson, Texas
Posts: 55
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Hotrodhomi wins! First thing I did was push on those two connections, got in and it fired right up. One of the clips that holds it in tight broke off, so I'll have to rig it until I can replace that.
I'll check in to that MSD Module Phoenix. I enjoy fixing up this truck, just don't like to "have" to because of a hard break. Thanks again folks! |
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05-18-2005, 03:33 PM
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#9 |
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Registered User
Join Date: Apr 2004
Location: Sacramento
Posts: 3,737
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glad you didn't have to walk or tow.
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05-18-2005, 10:01 PM
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#10 |
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Tonawanda 454
Join Date: Mar 2004
Location: Liquid Sunshine State
Posts: 2,755
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i replaced the module in my 76 with HEI (350) and it was fine for a month or so but it bascially dies again whenever high humidity or it rains just like before... so i need to get a dist boot or better dist setup... oh wait im selling it so i wont do it...
__________________
91 Chevy Suburban Tonawanda 454 R2500 - SOLD!!!  04 Dodge Durango 5.7L Hemi 2WD, 24K miles (as of July 2011) In the past 30 years about 90% of Fords are still on the road, the other 10% made it home. ------------------- |
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