engine knocking

vincent.s · 07-08-2011, 11:45 PM

my engine has been making a knocking noise lately. it sounds like pin knocks. from my knowledge if your put regular gas in, the engine will make knocking noise in the summer. Does anyone know what this could be??

tibra1 · 07-08-2011, 11:50 PM

Yes ur knocking from the low octane gas ..you answered ur question..use 93..

How many miles do you have?..that could be a sign that u have carbon deposits on ur pistons and intake valves..n its worst in the summer

vincent.s · 07-09-2011, 12:25 AM

could it be valving tapping? if it was is that a bad thing?

tamster00 · 07-09-2011, 05:45 AM

its retarding timing to accommodate the low octane gas, which is very bad for our engine. Better off using 89 and up.

OlivaresAnthony · 07-09-2011, 10:00 AM

Put in a bottle of techron and switch to a higher octane gas.

tibra1 · 07-09-2011, 11:47 AM

Quote:

Originally Posted by tamster00

its retarding timing to accommodate the low octane gas, which is very bad for our engine. Better off using 89 and up.

No if it was retarding timing than you wouldnt get knock..

tibra1 · 07-09-2011, 11:48 AM

Quote:

Originally Posted by vincent.s

could it be valving tapping? if it was is that a bad thing?

Valves would be a ticking noise and happens even when the car is idling..what u have does sound like knock and its prolly b/c your using low octance gas..

Miles on the car??????

Dark_Knight_335 · 07-10-2011, 03:00 PM

328? Can't tell on the mobile. If so, and if you're in warranty, get your valve lifters swapped at the dealer. Worked like a charm for me, and I always fill up with v-power

vincent.s · 07-10-2011, 09:07 PM

i have 55,000 miles

TarasE90 · 07-12-2011, 08:07 AM

maybe this is the correct section, as my gf's car is making a Knocking or a Rattle sound,
in the pic below, im pointing to the spot where its coming from.
its a 06 325i with 72k

-sorry for such a huge picture.... i dont know how to make it smaller

vincent.s · 07-13-2011, 01:13 PM

yea my dad is saying is could be a valve tap now?

e90pilot · 07-13-2011, 01:31 PM

Does the sound go away after you drive it for a while? After they sit for a for a few days, they'll the lifters will start ticking. It should go away after a while.

vincent.s · 07-13-2011, 01:35 PM

yea the car was sitting in the garage for 3 days then it started ticking when i went to start it up, i drove to work 10 minutes away and the car sat again for 6 hours and the ticking was their when i went to start the car again but it hasnt done it lately

benzo23 · 07-13-2011, 01:51 PM

mine will tick sometimes in the morning but after about a 10 min drive it goes away I wouldnt worry to much about it...all gas engines make a tap, click, or a clatter of some sort

e90pilot · 07-13-2011, 01:55 PM

Then it's totally normal. I'm not sure why they do it, but if they sit, they start ticking. Drive it for a few minutes and it goes away.

vincent.s · 07-13-2011, 11:06 PM

alright guys thanku for the input i appreciate it.

07-08-2011, 11:45 PM	#1
vincent.s Private 7 Rep 93 Posts Drives: 535xi Join Date: Mar 2011 Location: belleville NJ iTrader: (1) Garage List 2007 328xi [0.00]	engine knocking my engine has been making a knocking noise lately. it sounds like pin knocks. from my knowledge if your put regular gas in, the engine will make knocking noise in the summer. Does anyone know what this could be??
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07-08-2011, 11:50 PM	#2
tibra1 Banned 127 Rep 6,773 Posts Drives: 2011 ZCP M3 - 2007 335i crashd Join Date: Apr 2009 Location: NYC iTrader: (4)	Yes ur knocking from the low octane gas ..you answered ur question..use 93.. How many miles do you have?..that could be a sign that u have carbon deposits on ur pistons and intake valves..n its worst in the summer
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07-09-2011, 12:25 AM	#3
vincent.s Private 7 Rep 93 Posts Drives: 535xi Join Date: Mar 2011 Location: belleville NJ iTrader: (1) Garage List 2007 328xi [0.00]	could it be valving tapping? if it was is that a bad thing?
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07-09-2011, 05:45 AM	#4
tamster00 Uhh, Hi =) 9 Rep 280 Posts Drives: 11' E90 335i, 12' Fit Sport Join Date: Apr 2011 Location: Daly City iTrader: (2)	its retarding timing to accommodate the low octane gas, which is very bad for our engine. Better off using 89 and up. __________________ Was - 08' E90 328i\|Sparkling Graphite Metallic\|AA Tune\|Steptronic\|Navigation\|Comfort Access\|Sport\|Matte Black Kidneys Now - 11' E90 335i Performance Edition\|Space Gray Metallic\|Sport\|Premium\|Navigation\|Steptronic\|JB4\|E R Charge Pipe\|HP Autowerks Foam Filter
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07-09-2011, 10:00 AM	#5
OlivaresAnthony Colonel 101 Rep 2,095 Posts Drives: 2019 Toyota Tacoma TRD OR 4x4 Join Date: Nov 2009 Location: San Diego, CA iTrader: (6) Garage List 2019 Toyota Tacoma ... [0.00] 2015 BMW 535i [0.00]	Put in a bottle of techron and switch to a higher octane gas. __________________ E90 325i\|Sparkling Graphite Metallic\|Steptronic\|Black Leatherette/Dark Burl Interior\|OEM Alarm\|35%Front/5%Rear Tint\|RD LED License Plate Lights\|Rear Fogs Activated\|Debadged\|Smoked Sidemarkers\|Blacklines\|Depo P90v2\|Matte Black Grille\|BMS PBX\|AFE Drop In\|Charcoal Filter Delete\|Air Scoops\| RM Silicone Intake Hose\| Magnaflow 14815\| 19" Avant Garde M310\|Continental DWS\|M3 Lip Spoiler
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07-10-2011, 03:00 PM	#8
Dark_Knight_335 Came to the N55 Darkside 1112 Rep 12,740 Posts Drives: 2011 335 E93 M-Sport Join Date: May 2010 Location: NY/NJ iTrader: (28)	328? Can't tell on the mobile. If so, and if you're in warranty, get your valve lifters swapped at the dealer. Worked like a charm for me, and I always fill up with v-power
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07-10-2011, 09:07 PM	#9
vincent.s Private 7 Rep 93 Posts Drives: 535xi Join Date: Mar 2011 Location: belleville NJ iTrader: (1) Garage List 2007 328xi [0.00]	i have 55,000 miles
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07-12-2011, 08:07 AM	#10
TarasE90 Registered 0 Rep 2 Posts Drives: 2006 325I Join Date: Jul 2011 Location: Ga iTrader: (0)	maybe this is the correct section, as my gf's car is making a Knocking or a Rattle sound, in the pic below, im pointing to the spot where its coming from. its a 06 325i with 72k -sorry for such a huge picture.... i dont know how to make it smaller Attached Images
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07-13-2011, 01:13 PM	#11
vincent.s Private 7 Rep 93 Posts Drives: 535xi Join Date: Mar 2011 Location: belleville NJ iTrader: (1) Garage List 2007 328xi [0.00]	yea my dad is saying is could be a valve tap now?
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07-13-2011, 01:31 PM	#12
e90pilot Freight Dawg 104 Rep 2,103 Posts Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA iTrader: (3)	Does the sound go away after you drive it for a while? After they sit for a for a few days, they'll the lifters will start ticking. It should go away after a while. __________________ --Marcelo '06 Arctic Metallic 325i \| Sport Package \| 6MT \| Dinan Stage III suspension \| Dinan exhaust \| 330i manifold swap! Click here! \| Active Autowerke tune \| 135i Brake Calipers \| Deiselboost caliper brackets \| E46 M3 front rotors
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07-13-2011, 01:35 PM	#13
vincent.s Private 7 Rep 93 Posts Drives: 535xi Join Date: Mar 2011 Location: belleville NJ iTrader: (1) Garage List 2007 328xi [0.00]	yea the car was sitting in the garage for 3 days then it started ticking when i went to start it up, i drove to work 10 minutes away and the car sat again for 6 hours and the ticking was their when i went to start the car again but it hasnt done it lately
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07-13-2011, 01:51 PM	#14
benzo23 Colonel 74 Rep 2,848 Posts Drives: 14 F30 AW MSport Join Date: Apr 2010 Location: FL iTrader: (1)	mine will tick sometimes in the morning but after about a 10 min drive it goes away I wouldnt worry to much about it...all gas engines make a tap, click, or a clatter of some sort
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07-13-2011, 01:55 PM	#15
e90pilot Freight Dawg 104 Rep 2,103 Posts Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA iTrader: (3)	Then it's totally normal. I'm not sure why they do it, but if they sit, they start ticking. Drive it for a few minutes and it goes away. __________________ --Marcelo '06 Arctic Metallic 325i \| Sport Package \| 6MT \| Dinan Stage III suspension \| Dinan exhaust \| 330i manifold swap! Click here! \| Active Autowerke tune \| 135i Brake Calipers \| Deiselboost caliper brackets \| E46 M3 front rotors
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07-13-2011, 11:06 PM	#16
vincent.s Private 7 Rep 93 Posts Drives: 535xi Join Date: Mar 2011 Location: belleville NJ iTrader: (1) Garage List 2007 328xi [0.00]	alright guys thanku for the input i appreciate it.
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