This is topic No spark!! in forum Tech Talk at Northern California Ford Owners .
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Posted by SLOW95GTS (Member # 10365) on
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Im having a frustrating time trying to get my car running right so hopefully you guys can help me on this.
So i will detail everything that happened or i've done since i started my h/i swap on my 95 mustang gts 5.0l.
First of all i put a new timing chain, head, intake, and timing cover gaskets,new ford racing lifter and hardened pushrods, i put some used edelbrock heads, with a used cobra intake and left the stock cam and went with 1.7 trickflow stud mount roller rockers. I've worked on enough 5.0 so i did the adjustments on the rockers correctly...
got everything connected like grounds and wires were their suppose to be. I started it up for the first time and it ran fine, idled great!, but the rockers got loose so off came the valve covers and before we took off the valve covers to adjust them again, we cranked the car until we got to tdc but then the tfi module started to smoke and my starter solenoid fried. So i changed the starter and got another tfi module out of another sn95. Tightened up the rockers and put everything back together.
now the problem is the car will crank but it wont start, it acts like it does but it backfires probably from the fuel being ejected. And i checked for spark at coil and its there but not the rest of the spark plugs. Ive replaced the distributor with another one, and got another coil from the same car and nothing. I made sure the distributor isn't 180* degrees off so that not the issue.
if anyone can help id dearly appreciated as i have basically given up.
Posted by 93 5.0 (Member # 12418) on
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Did you try a diff ecu mine did the same and my ecu took a poop on me 150 later car ran that just my two cents
Posted by SLOW95GTS (Member # 10365) on
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Im going to try and find one, probably just change the whole harness because I can't find any other differences/problems besides the fried tfi module.
Posted by 93 5.0 (Member # 12418) on
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Check fues and relays
Posted by SLOW95GTS (Member # 10365) on
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I looked at the fusible links, and all the fuses in under the hood and dash even replaced some for the hell of it. Good thing the harness is easy to change on these cars, ill change both ecu and harness and make it clean at the sametime.
Posted by CRS24WILSON (Member # 9979) on
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Just out of curiosity, if you're getting spark a the coil and not distributor, have you checked resistance on the coil wire?
Posted by SLOW95GTS (Member # 10365) on
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Like the strength? because i checked with both a stock and a msd wire and both haven't been able to distribute the spark.
Posted by Saleen#222 (Member # 13410) on
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I'm taking a guess but.. It kind of sounds like your timing is off, if it cranks then backfires. I could be wrong.
Posted by carajo (Member # 4426) on
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What he is trying to say is,coil to coil wire has spark going to distributor.coil wire to dist has spark.but dist to sparkplugs there is no spark.
Posted by s/c chp (Member # 9879) on
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Check fire module on the distributor
Posted by CHP2981 (Member # 9240) on
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When my MSD distributer failed it did the same thing. I put the stock one back in and has been fine since.
Posted by SLOW95GTS (Member # 10365) on
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I found the problem, it was the ground battery wire to the block was loose.
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