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Pontiac sunfire knock during accelartion
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jarret83
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Mar 5, 2013, 3:36 PM
Post #1 of 25
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Pontiac sunfire knock during accelartion
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1995
pontiac
sufire
2.2l (from a 94 cavalier)
about 130k
so me and my grandpa have had a trip with this car. i got it for gas mileage but the original motor was locked up. so we bought a 1994 cavalier and pulled the motor from it. (the sunfire had a nicer body and interior). so for about 3 months i learned alot about changing motors and cuss words haha any way, we used the the cavalier engine and transmission.
after about the first month of driving it, it started knocking to a terrible extent. So we changed the front left cv axle with one from the cavalier(we saved most parts) so that care of it a little so the mext weekend we changed the other one. the knocking is still there. how ever, my grandpa did put 15w 40 oil in and generic spark plugs because it was all free. i have no idea what else could cause it to knock. it only knocks when im accelrating ex: passing someone on the highway, or speeding up in town. but it doesnt knock when im in park or in neutral. only when im in gear. any help would be greatly appreciated, im beginning to stress over this problem, thank you!!!
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speed
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Mar 5, 2013, 3:58 PM
Post #2 of 25
(3889 views)
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Re: Pontiac sunfire knock during accelartion
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15w40 is pretty heavy oil especially for such a small motor, try an oil change with 5w30 or 10w30 and inspect the oil you drain for metal shavings, i suspect whats happening is in park or neutral theres significantly less load on the engine ut when your accelerating theres enough load that the oil pump cannot pump the oil where it needs to be because kt is so thick, you may have already done enough damage that changing the oil wont fix it as well.
GM ASEP 26 SCC Milford ASE certified in Brakes and Electrical on Thursday April 5th 2012
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jarret83
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Mar 5, 2013, 4:01 PM
Post #3 of 25
(3887 views)
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Re: Pontiac sunfire knock during accelartion
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even if i have done damage thank you so much for the help/ reply!!! it is extremely appreciated if this fixes i will reply back again. thanks again!!
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jarret83
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Mar 5, 2013, 4:25 PM
Post #5 of 25
(3864 views)
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Re: Pontiac sunfire knock during accelartion
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I should've explained it, like he got them from work for free, he didn't check if they were made for my engine
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Hammer Time
Ultimate Carjunky
/ Moderator
Mar 5, 2013, 4:27 PM
Post #6 of 25
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Re: Pontiac sunfire knock during accelartion
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WHOOOOO................... big problem. Get them out right away and get the correct Delco plugs and hope they haven't already damaged a piston.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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jarret83
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Mar 5, 2013, 4:29 PM
Post #7 of 25
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Re: Pontiac sunfire knock during accelartion
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That's what I was trying to tell him! Haha but he's my grandpa so ya know, can't argue much
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Tom Greenleaf
Ultimate Carjunky
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Mar 5, 2013, 5:08 PM
Post #8 of 25
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Re: Pontiac sunfire knock during accelartion
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Spring for the right plugs as just said. No telling what else might be causing "knock" till those unknowns are out. Once warmed up the heavy oil probably isn't the up front issue but that should go too,
T
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jarret83
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Mar 5, 2013, 5:28 PM
Post #10 of 25
(3831 views)
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Re: Pontiac sunfire knock during accelartion
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Haha I should've added tht my check oil light is on as well
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Hammer Time
Ultimate Carjunky
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Mar 5, 2013, 5:43 PM
Post #11 of 25
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Re: Pontiac sunfire knock during accelartion
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You gotta be kidding. You forgot to mention that you were driving it with the oil light on?
You need to go back to your bicycle.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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jarret83
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Mar 5, 2013, 6:03 PM
Post #12 of 25
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Re: Pontiac sunfire knock during accelartion
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I'm here for help not for ridicule sir, it just slipped my mind, I've checked the oil and its at operating range
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Hammer Time
Ultimate Carjunky
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Mar 5, 2013, 6:07 PM
Post #13 of 25
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Re: Pontiac sunfire knock during accelartion
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The omission in your question was your minor screw up. Driving a car with the oil light on is just plain stupid. That is not an oil level light. It's an oil pressure light. Compare oil pressure to your own heartbeat. You can't live without it and neither can your engine. That light is red for a reason. It means immediately stop.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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jarret83
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Mar 5, 2013, 6:09 PM
Post #14 of 25
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Re: Pontiac sunfire knock during accelartion
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Mine isn't red? It says check oil and is orange sometimes it will appear other times will not
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Hammer Time
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Mar 5, 2013, 6:13 PM
Post #15 of 25
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Re: Pontiac sunfire knock during accelartion
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And you're sure it is wrong?
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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jarret83
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Mar 5, 2013, 9:47 PM
Post #16 of 25
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Re: Pontiac sunfire knock during accelartion
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Sure what is wrong?
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Hammer Time
Ultimate Carjunky
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Mar 6, 2013, 4:13 AM
Post #17 of 25
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Re: Pontiac sunfire knock during accelartion
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The light says the car needs oil and you say it does not. Are you sure the light is malfunctioning?
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Tom Greenleaf
Ultimate Carjunky
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Mar 6, 2013, 4:44 AM
Post #18 of 25
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Re: Pontiac sunfire knock during accelartion
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Don't trust those light that mean "check oil" usually amber. I've purposely done oil changes with a quart low and they didn't' work till it was TOO low or not at all!
If (probably) this uses some oil know how many miles and check it by dipstick often AND have the oil with you. The icon (it this uses that) of an oil can means your next ride will be in a tow truck. Shut down at once if that is seen! Oil to an engine is NOT a game!
T
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jarret83
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Mar 6, 2013, 4:01 PM
Post #19 of 25
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Re: Pontiac sunfire knock during accelartion
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this is just a thought but could i possibly have a broken/ incorrectly installed motor mount putting to much stress on the left side cv axle?? i'll attach of photo of how the enginge sits
 notice how it leans down toward the left wheel, is this normal??? thank you
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Hammer Time
Ultimate Carjunky
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Mar 6, 2013, 4:05 PM
Post #20 of 25
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Re: Pontiac sunfire knock during accelartion
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There is no picture there.
Does this noise only occur when the car is moving?
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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jarret83
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Mar 6, 2013, 4:12 PM
Post #21 of 25
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Re: Pontiac sunfire knock during accelartion
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yes it only does it when i move
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Hammer Time
Ultimate Carjunky
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Mar 6, 2013, 4:15 PM
Post #22 of 25
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Re: Pontiac sunfire knock during accelartion
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Yes, it could be the axles hitting something.
Your pictures are not coming out. You have to upload them to a photo hosting site like Photobucket and they will supply a link to post here that will make the picture appear.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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jarret83
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Mar 6, 2013, 4:19 PM
Post #23 of 25
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Re: Pontiac sunfire knock during accelartion
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 i think i got it now lol
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Hammer Time
Ultimate Carjunky
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Mar 6, 2013, 4:21 PM
Post #24 of 25
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Re: Pontiac sunfire knock during accelartion
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That motor definitely fell down. You need to have the motor mounts checked and find out what is hitting.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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jarret83
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Mar 6, 2013, 4:23 PM
Post #25 of 25
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Re: Pontiac sunfire knock during accelartion
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thats what i thought! i think the bracket on the transmisson connecting it to a mount is making it fall like that hitting the axle
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