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hey guys and gals. i have a 93 buick park ave will crank but no spark. i put a screwdriver in the spark plug wire and held it close to the coil post and no spark. i find it hard to believe all 3 coils went bad at once. also every so offten the car will start but most of the time it wont. the car was bought off a dui offender and had a blow and go (breathalyzer) insatlled. i just got the car tonight and did not get to look at the wiring under the dash yet. any ideas? thank you in advance.
john
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also i found the button for the change oil light the switch fell out so i had to pull the cover down lol. its a fight every step of the way.
Johnnyjohn412, I may get a couple wrenches thrown at me here, but I want to address this with you from a realistic standpoint. Many folks on this forum are learning and growing and find themselves in one of the following situations:
1. A DIY mechanic learning and growing, with limited skills at diagnosing and trouble shooting trouble codes compared to that of a professional mechanic.
2. An individual with limited resources who relies on keeping the wheels rolling to work/ function. Meaning that you don’t have the luxury of letting a car sit around until you can learn to use a “real” scanner and interpret it’s data/ use a lab scope, etc., You may not even have access to these tools.
3. An individual who does not have the financial resources to pay a professional mechanic to diagnose an issue that is “over one’s head.”As a dad with a wife and 5 children, I have lived through all of these scenarios and more while keeping the wheels rolling. That being said, I totally agree with the wisdom of not throwing parts and money at a car trying to repair it. That’s the reason many take advantage of Eric’s wonderful website, forum and resources.
So here is my suggestion to you. The codes are pointing towards the camshaft sensor. In fact the TPS sensor code and the EST could be resulting from the camshaft sensor. First, disconnect the battery and clear you codes. That way you’re starting fresh. Next, take your pic tool and make sure the connector at the camshaft sensor is good and tight. You mentioned a no spark scenario until you unplugged it and then plugged it back in… If it continues, and here come the wrenches, go to the salvage yard and pull a cam sensor off another vehicle and try it out. I know it’s possible to pull a bad electronic part from a salvage vehicle. Shoot, you could probably pull two, and only be out a few bucks. I guess what I am saying, is that WHILE you are learning and growing, there’s no shame in throwing some cheap parts at the codes if you’re really trying to keep the wheels rolling. The shame in this would be if we’re not continuing to learn and grow in the process.. Any way, that’s my pep talk and sermon for the day. Your Roadmaster is an old car, so there should be mo shortage of available used parts. Best of luck and keep us posted..
One other follow up thought, the “popping sound.” This could be a cracked/ leaking ignition coil. Check out the vid from Eric. You can take a spray bottle of water out in the dark and easily see this. Of course this full moon would make it a challenge outside.
well i looked at the tps for the first time and seen it was installed just not the right way. they installed it but did not attach it to the throttle. the old owner told me the tps was just replaced before i got the car so i never checked it. its been running fine now for about 2 weeks now. check engine light went off. then tonight on my way home from pittsburgh it strated back firing like hell and would not start got it towed home charged the battery and still no start. i checked the code due to the ck eng light being on again. code 18. i pushed on the wiring harness to the crankshaft sensor and it started right up. so i am assuming the wiring harness is bad. going to replace it tomorrow. and just when i thought i was done lol. thanks for all the help tomatofarmer1
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