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1992 buick park avenue comp. code 41 camshaft sensor
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leonard
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Jun 18, 2007, 12:30 PM
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1992 buick park avenue comp. code 41 camshaft sensor
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 Going crazy here..This 92 Buick has been a good one,,has 98,000 and no trouble until recently. It began running rough and set a code 41 in the computer. I checked it out and replaced the camshaft sensor (which it said to do). I then cleared the codes and started the engine..same problem, running rough and again set the code 41. I took it out and double checked no visible problem. This is a 3.8 v-6. I'm wondering if anyone has had this same problem and if so any help would be appreciated.
Thanks. leonard
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DanD
Veteran
/ Moderator
Jun 19, 2007, 5:23 AM
Post #2 of 9
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Re: 1992 buick park avenue comp. code 41 camshaft sensor
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What I’ve seen happen with these is the trigger magnet for the sensor that is clipped into the cam gear falls out of its retainer and disappears somewhere never to be seen again; likely gets chewed up in the timing chain. If you were to remove the sensor and with the use of a mirror you should be able to look through the hole in the timing cover and see if the magnet is still there. What you might see is the metal retainer that should have the magnet held in its center is empty?
The crappy part about this is, if the magnet is gone; you’ll have to remover the timing cover to replace it. It’s installed through the back of the timing gear and the gear needs to be off the engine.
This isn’t a very good diagram of the cam gear but good enough to get an idea of where the magnet is.
Dan
Canadian "EH"
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leonard
Novice
Jun 19, 2007, 8:56 AM
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Re: 1992 buick park avenue comp. code 41 camshaft sensor
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Dan : Thanks for the prompt replay, I've been out of the business for about 15 years now. I was a driveablity tech. for a number of years and also owned my own shop, sold that 1987 so I'm a little out of practice. However; I'm not ready to bend over that cross eyed engine just yet, I had open heart surgery april 15th so I'll wait a while. I'm wondering, could the crank sensor be the culprit? I know it's nearly as bad to change as the cam magnet but would like to save all work possible. Thanks again. Leonard
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jun 19, 2007, 11:56 AM
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Re: 1992 buick park avenue comp. code 41 camshaft sensor
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Leonard: I would do the mirror trick if you want to go back there again. Obiously it would be a timing chain replacement to fix the cam gear magnet and if you aren't up to that right now at least you would know.
Hey! Is that another kitty that just showed up? We have strict limits here about posting with kitties your know .
Good luck with the fix,
T
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leonard
Novice
Jun 19, 2007, 1:47 PM
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Re: 1992 buick park avenue comp. code 41 camshaft sensor
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 Hey, yeah! That's my little angel baby...Love my kitty. lol Thanks for the input, probably use the "mirror thing" right now, dang, dang, dang, also got a 90 merc. sable, drawing 3.0 amps with ign. off. 3.0 156,000 k. been really good, until it quit charging, changed alt. (twice) new reg. finally found a burned up fusable link, replaced that, now drawing amps, pulled all the fuses, cant find the dang thing yet, cooling fan quit toooooooooooooo. aaaaagggghhh !!!! both cars down for a week, and then the heart thing...lol what a summer!
Have a good day today and a better one tomorrow..
Leonard>.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jun 19, 2007, 4:31 PM
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Re: 1992 buick park avenue comp. code 41 camshaft sensor
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90 Sable: Check the way the ignition key feels?? Can you pull the key out when it's not supposed to? Had a couple of those that just didn't index OFF properly but they were a tad older,
T
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leonard
Novice
Jun 19, 2007, 4:51 PM
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Re: 1992 buick park avenue comp. code 41 camshaft sensor
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 Key comes out while it's running, never gave that a thought. Perhaps it's suppsed to?? Don't know, but will check it tomorrow. It has always done that since I bought the car 3 for four years ago.
Thanks for the input..
Leonard
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jun 19, 2007, 5:04 PM
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Re: 1992 buick park avenue comp. code 41 camshaft sensor
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It's not supposed to! That's probably the trouble as it was with some I knew. They were ok if you just made sure it was exactly OFF and for one I just put a stripe to index it and it never gave them trouble again but the right repair would have been to jump thru the hoops and fix the lock,
T
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leonard
Novice
Jun 19, 2007, 5:56 PM
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Re: 1992 buick park avenue comp. code 41 camshaft sensor
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 Well hot diggity dog, I didn't know that! Well perhaps you have just solved my problem as I have noticed (from time to time) that was a problem, just never soaked into this fat head of mine..I have taken the key out several time's and had some trouble shutting the dang thing off. Can I blame it on the heart thing?? Hate to appear like an idiot as I used to be one the best around..(20 years ago that is). I was featured on the back page of the napa auto magazine as a mech. who could fix stuff others couldnt or didnt want to..Oh well, guess things change or as they say (stuff) happens..Luck and thanks again.
Leonard
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