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Pontiac sunfire knock during accelartion


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jarret83
User

Mar 5, 2013, 3:36 PM

Post #1 of 25 (2453 views)
post icon Pontiac sunfire knock during accelartion Sign In

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!!!


speed
User

Mar 5, 2013, 3:58 PM

Post #2 of 25 (2431 views)
Re: Pontiac sunfire knock during accelartion Sign In

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


jarret83
User

Mar 5, 2013, 4:01 PM

Post #3 of 25 (2429 views)
Re: Pontiac sunfire knock during accelartion Sign In

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!!


Hammer Time
Ultimate Carjunky / Moderator
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Mar 5, 2013, 4:17 PM

Post #4 of 25 (2416 views)
Re: Pontiac sunfire knock during accelartion Sign In


Quote
and generic spark plugs because it was all free


What is a "generic" spark plug?



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jarret83
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Mar 5, 2013, 4:25 PM

Post #5 of 25 (2406 views)
Re: Pontiac sunfire knock during accelartion Sign In

I should've explained it, like he got them from work for free, he didn't check if they were made for my engine


Hammer Time
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Mar 5, 2013, 4:27 PM

Post #6 of 25 (2401 views)
Re: Pontiac sunfire knock during accelartion Sign In

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.



jarret83
User

Mar 5, 2013, 4:29 PM

Post #7 of 25 (2397 views)
Re: Pontiac sunfire knock during accelartion Sign In

That's what I was trying to tell him! Haha but he's my grandpa so ya know, can't argue much


Tom Greenleaf
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Mar 5, 2013, 5:08 PM

Post #8 of 25 (2387 views)
Re: Pontiac sunfire knock during accelartion Sign In

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



Discretesignals
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Mar 5, 2013, 5:20 PM

Post #9 of 25 (2378 views)
Re: Pontiac sunfire knock during accelartion Sign In


Quote
I should've explained it, like he got them from work for free, he didn't check if they were made for my engine


<singing> "Grandpa, tell me about the good ole days...the day we blew up the engine with the wrong plugs in the drive wayyyyy...Grandpa, my car is making a knocking noise...it sounds like a piston is about to deploy.. Grandpaaaaa tell me about the good oleee dayssssss....





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Mar 5, 2013, 5:24 PM)


jarret83
User

Mar 5, 2013, 5:28 PM

Post #10 of 25 (2373 views)
Re: Pontiac sunfire knock during accelartion Sign In

Haha I should've added tht my check oil light is on as well


Hammer Time
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Mar 5, 2013, 5:43 PM

Post #11 of 25 (2363 views)
Re: Pontiac sunfire knock during accelartion Sign In

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.



jarret83
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Mar 5, 2013, 6:03 PM

Post #12 of 25 (2358 views)
Re: Pontiac sunfire knock during accelartion Sign In

I'm here for help not for ridicule sir, it just slipped my mind, I've checked the oil and its at operating range


Hammer Time
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Mar 5, 2013, 6:07 PM

Post #13 of 25 (2354 views)
Re: Pontiac sunfire knock during accelartion Sign In

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.



jarret83
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Mar 5, 2013, 6:09 PM

Post #14 of 25 (2348 views)
Re: Pontiac sunfire knock during accelartion Sign In

Mine isn't red? It says check oil and is orange sometimes it will appear other times will not


Hammer Time
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Mar 5, 2013, 6:13 PM

Post #15 of 25 (2340 views)
Re: Pontiac sunfire knock during accelartion Sign In

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.



jarret83
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Mar 5, 2013, 9:47 PM

Post #16 of 25 (2331 views)
Re: Pontiac sunfire knock during accelartion Sign In

Sure what is wrong?


Hammer Time
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Mar 6, 2013, 4:13 AM

Post #17 of 25 (2319 views)
Re: Pontiac sunfire knock during accelartion Sign In

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.



Tom Greenleaf
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Mar 6, 2013, 4:44 AM

Post #18 of 25 (2310 views)
Re: Pontiac sunfire knock during accelartion Sign In

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



jarret83
User

Mar 6, 2013, 4:01 PM

Post #19 of 25 (2293 views)
Re: Pontiac sunfire knock during accelartion Sign In

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


Hammer Time
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Hammer Time profile image

Mar 6, 2013, 4:05 PM

Post #20 of 25 (2289 views)
Re: Pontiac sunfire knock during accelartion Sign In

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.



jarret83
User

Mar 6, 2013, 4:12 PM

Post #21 of 25 (2284 views)
Re: Pontiac sunfire knock during accelartion Sign In

yes it only does it when i move


Hammer Time
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Mar 6, 2013, 4:15 PM

Post #22 of 25 (2278 views)
Re: Pontiac sunfire knock during accelartion Sign In

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.



jarret83
User

Mar 6, 2013, 4:19 PM

Post #23 of 25 (2268 views)
Re: Pontiac sunfire knock during accelartion Sign In

i think i got it now lol


Hammer Time
Ultimate Carjunky / Moderator
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Mar 6, 2013, 4:21 PM

Post #24 of 25 (2261 views)
Re: Pontiac sunfire knock during accelartion Sign In

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.



jarret83
User

Mar 6, 2013, 4:23 PM

Post #25 of 25 (2258 views)
Re: Pontiac sunfire knock during accelartion Sign In

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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