Chattering or rattling noise when accelerating
#1
Chattering or rattling noise when accelerating
I was giving a 83 Buick Electra with an olds 307 in it. It was running perfectly after I changed the distributor rotor button and plugs for the three weeks I had the car so far. Over this past weekend I decided to change the oil and that's when this rattling or chattering noise started. I believe the PO said he was using 20W 50 but I decided to go with 10 w 40 instead could that be the problem
#9
I'm wondering if the timing chain stretched and through itself out, but it would probably throw a code if its equipped. The squeal in neutral etc sounds like a belt, does the water pump pulley look to be running out?
#10
I don't know if it equipped wit it. I haven't looked at the pulley. This problem just puzzling me all I did was change the oil and over filled the ps pump.
Last edited by Amarion58; April 3rd, 2017 at 05:50 PM.
#12
Overfilling the ps did not cause this problem. The squeal could be a belt. I'm wondering if perhaps one of your accy's has a bad bearing. Remove the belts and put the car in gear, give it some gas, apply the brakes firmly, and see if makes the clattering goes away.
#13
I agree with Eric, I've heard water pumps that went out and made quite the noise, try pulling in behind the pulley with a pry bar, don't give'r just tug back a forth a few times. You certainly can upload a video that would help .
Eric
Eric
#14
I finally figure out the chattering or rattling whichever it was. The distributor was loose not all the wat loose but loose to the point I can turn it by hand and I cannot tightening it anymore. I use the timing light to set it but I believe it will do the same thing some time soon. What to do now?
#15
Plus what damage could I have cause driving it out of timing for two days plus could that played a role with possibly tearing up a belt or pulley. This website have help me through a lot of problems with my olds engines
Last edited by Amarion58; April 3rd, 2017 at 06:37 PM.
#17
Good to hear you found the culprit. I would think no damage was done either. That's why its important to let everyone know what you had done in your first post.
Eric would have figured it out rite away for you.
Thanks for posting the fix!
Eric
Eric would have figured it out rite away for you.
Thanks for posting the fix!
Eric
#18
I back to the drawing again. The same problem occurred again but the distributor is tight and the timing is correct. But I did notice one of the tube on the smog air pump line is snap in two near where the noise is. Could that be the noise. Like I said before it only does it while I driving with my foot on the gas but in park I can rev the engine and get no noise.
Last edited by Amarion58; April 5th, 2017 at 01:56 PM.
#19
Did you follow the proper procedure by jumpering the AB pins in the plug under the dash and set timing to 20*BTDC? Next check for vacuum leaks, and your EGR valve, if its somewhat clogged or not working, the engine will ping.
#20
Yes I did the ground an out when I set the timing but haven't mess with her yet because I thought it had some to do with me changing from the 20w 50 oil to 10w 40. I can't really pinpoint the noise cause I have to drive and be on the gas.
#24
Here are some suggestions.
https://classicoldsmobile.com/forums...-solenoid.html
https://classicoldsmobile.com/forums...-solenoid.html
#26
I hope this helps
Eric
#28
Sorry to reply so late but I found the problem thank to burning up one of my battery cables. It was a dime sized hole in my exhaust manifold if that's what you call it.(the iron pipe that connect to the head). My positive cable melted to the hole which cause me to find it which probably was causing to start rattle or chatter on and off. My temp fix was I welded a quarter over it until I can replace it unless someone know a permanent fix without replacing it. I thank everyone for the help on here.
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