Knocking Sound
From : guy lee
Q: hello all i have an 87 dodge ram 5.2l 4x4 automatic. lately ive noticed the engine knocking immediately after starting it and when driving highway speeds. im thinking that im screwed and it might be the rods. is there anything i should try before getting it rebuilt maybe some thicker oil or something; i have 10w30 in it now. thanks guy .
Replies:
From : daguy
on 23 oct 2003 035906 -0700 ghlj@bigfoot.com guy lee wrote no i havent changed gas yet. im using 89 currently no specific brand. ill try 87 on the next fill up. do you recommend any gas company over another g you will probably get a lot of disagreement over gas brands but when we had trouble with a mazda a few years back the factory representative strongly urged us to use chevron gas and as a second choice texaco. this was due to excessive carbon build up in a smaller engine. using chevron fixed the problem for that particular engine and i now stay with chevron. recently a friend had a similar problem with a subaru and the factory techs called him and told him that using chevron gas would fix the trouble. it did. again people will argue with this and i have been told by people that work in the gas business that all of the companies share gas supplies anyway so who knows. sounds like you got a bad case of pinging not bearing noise. have you changed brands of gas or tried a lower octane than your usual -- budd cochran not extremely loud but i can hear it when the windows are rolled down. it knocks only under acceleration but not necessarily hard acceleration. it seems to knock the most at 65 mph at somewhat cruising speed. when i let off the acceleration it stops. sounds more like marbles than a hard metal-on-metal sound. i guess it mostly sounds like a loud sewing machine. guy how loud hard metal against metal or a can full of marbles when does it knock under acceleration deceleration cruising -- budd cochran hello all i have an 87 dodge ram 5.2l 4x4 automatic. lately ive noticed the engine knocking immediately after starting it and when driving highway speeds. im thinking that im screwed and it might be the rods. is there anything i should try before getting it rebuilt maybe some thicker oil or something; i have 10w30 in it now. thanks guy .
From : fmb
chevron is all i use in the gasser. had an old plymouth with 125k on it. took the head off for a valve guide issue. the combustion chamber was clean as a whistle. i mean clean. you couldnt get it any cleaner if you tried. its the techron. check out the 3 links at the bottom of this cvx page... http//www.chevron.com/prodserv/fuels/techrongas/ i dont use low-bid oil either... http//www.chevron.com/prodserv/nafl/auto/content/motoroils.shtm#delo fmb only one b in fmb on 23 oct 2003 035906 -0700 ghlj@bigfoot.com guy lee wrote no i havent changed gas yet. im using 89 currently no specific brand. ill try 87 on the next fill up. do you recommend any gas company over another g you will probably get a lot of disagreement over gas brands but when we had trouble with a mazda a few years back the factory representative strongly urged us to use chevron gas and as a second choice texaco. this was due to excessive carbon build up in a smaller engine. using chevron fixed the problem for that particular engine and i now stay with chevron. recently a friend had a similar problem with a subaru and the factory techs called him and told him that using chevron gas would fix the trouble. it did. again people will argue with this and i have been told by people that work in the gas business that all of the companies share gas supplies anyway so who knows. sounds like you got a bad case of pinging not bearing noise. have you changed brands of gas or tried a lower octane than your usual -- budd cochran not extremely loud but i can hear it when the windows are rolled down. it knocks only under acceleration but not necessarily hard acceleration. it seems to knock the most at 65 mph at somewhat cruising speed. when i let off the acceleration it stops. sounds more like marbles than a hard metal-on-metal sound. i guess it mostly sounds like a loud sewing machine. guy how loud hard metal against metal or a can full of marbles when does it knock under acceleration deceleration cruising -- budd cochran hello all i have an 87 dodge ram 5.2l 4x4 automatic. lately ive noticed the engine knocking immediately after starting it and when driving highway speeds. im thinking that im screwed and it might be the rods. is there anything i should try before getting it rebuilt maybe some thicker oil or something; i have 10w30 in it now. thanks guy .
From : mac davis
on thu 23 oct 2003 153518 gmt daguy daguy@uo.com wrote i was talking to a friend about differences in gas brands a few weeks ago and he sot of surprised me... he said that the difference was in the additives which id heard before but id assumed that the additives were added at the refineries... he said that they were added at the depots when the tank trucks were filled.... and that they were added in the truck as the tanker was being filled! hes a salesman for a major oil company so i tend to believe him but it does sound weird... ive heard for years that chevrons technoline or whatever was very good at cleaning carbon deposits but that could be advertising hype.. on 23 oct 2003 035906 -0700 ghlj@bigfoot.com guy lee wrote no i havent changed gas yet. im using 89 currently no specific brand. ill try 87 on the next fill up. do you recommend any gas company over another g you will probably get a lot of disagreement over gas brands but when we had trouble with a mazda a few years back the factory representative strongly urged us to use chevron gas and as a second choice texaco. this was due to excessive carbon build up in a smaller engine. using chevron fixed the problem for that particular engine and i now stay with chevron. recently a friend had a similar problem with a subaru and the factory techs called him and told him that using chevron gas would fix the trouble. it did. again people will argue with this and i have been told by people that work in the gas business that all of the companies share gas supplies anyway so who knows. sounds like you got a bad case of pinging not bearing noise. have you changed brands of gas or tried a lower octane than your usual -- budd cochran not extremely loud but i can hear it when the windows are rolled down. it knocks only under acceleration but not necessarily hard acceleration. it seems to knock the most at 65 mph at somewhat cruising speed. when i let off the acceleration it stops. sounds more like marbles than a hard metal-on-metal sound. i guess it mostly sounds like a loud sewing machine. guy how loud hard metal against metal or a can full of marbles when does it knock under acceleration deceleration cruising -- budd cochran hello all i have an 87 dodge ram 5.2l 4x4 automatic. lately ive noticed the engine knocking immediately after starting it and when driving highway speeds. im thinking that im screwed and it might be the rods. is there anything i should try before getting it rebuilt maybe some thicker oil or something; i have 10w30 in it now. thanks guy .
From : fmb
no hype been there done that wear the t-shirt. on thu 23 oct 2003 153518 gmt daguy daguy@uo.com wrote i was talking to a friend about differences in gas brands a few weeks ago and he sot of surprised me... he said that the difference was in the additives which id heard before but id assumed that the additives were added at the refineries... he said that they were added at the depots when the tank trucks were filled.... and that they were added in the truck as the tanker was being filled! hes a salesman for a major oil company so i tend to believe him but it does sound weird... ive heard for years that chevrons technoline or whatever was very good at cleaning carbon deposits but that could be advertising hype.. on 23 oct 2003 035906 -0700 ghlj@bigfoot.com guy lee wrote no i havent changed gas yet. im using 89 currently no specific brand. ill try 87 on the next fill up. do you recommend any gas company over another g you will probably get a lot of disagreement over gas brands but when we had trouble with a mazda a few years back the factory representative strongly urged us to use chevron gas and as a second choice texaco. this was due to excessive carbon build up in a smaller engine. using chevron fixed the problem for that particular engine and i now stay with chevron. recently a friend had a similar problem with a subaru and the factory techs called him and told him that using chevron gas would fix the trouble. it did. again people will argue with this and i have been told by people that work in the gas business that all of the companies share gas supplies anyway so who knows. sounds like you got a bad case of pinging not bearing noise. have you changed brands of gas or tried a lower octane than your usual -- budd cochran not extremely loud but i can hear it when the windows are rolled down. it knocks only under acceleration but not necessarily hard acceleration. it seems to knock the most at 65 mph at somewhat cruising speed. when i let off the acceleration it stops. sounds more like marbles than a hard metal-on-metal sound. i guess it mostly sounds like a loud sewing machine. guy how loud hard metal against metal or a can full of marbles when does it knock under acceleration deceleration cruising -- budd cochran hello all i have an 87 dodge ram 5.2l 4x4 automatic. lately ive noticed the engine knocking immediately after starting it and when driving highway speeds. im thinking that im screwed and it might be the rods. is there anything i should try before getting it rebuilt maybe some thicker oil or something; i have 10w30 in it now. thanks guy .
From : budd cochran
how loud hard metal against metal or a can full of marbles when does it knock under acceleration deceleration cruising -- budd cochran hello all i have an 87 dodge ram 5.2l 4x4 automatic. lately ive noticed the engine knocking immediately after starting it and when driving highway speeds. im thinking that im screwed and it might be the rods. is there anything i should try before getting it rebuilt maybe some thicker oil or something; i have 10w30 in it now. thanks guy .
From : guy lee
not extremely loud but i can hear it when the windows are rolled down. it knocks only under acceleration but not necessarily hard acceleration. it seems to knock the most at 65 mph at somewhat cruising speed. when i let off the acceleration it stops. sounds more like marbles than a hard metal-on-metal sound. i guess it mostly sounds like a loud sewing machine. guy how loud hard metal against metal or a can full of marbles when does it knock under acceleration deceleration cruising -- budd cochran hello all i have an 87 dodge ram 5.2l 4x4 automatic. lately ive noticed the engine knocking immediately after starting it and when driving highway speeds. im thinking that im screwed and it might be the rods. is there anything i should try before getting it rebuilt maybe some thicker oil or something; i have 10w30 in it now. thanks guy .
From : budd cochran
sounds like you got a bad case of pinging not bearing noise. have you changed brands of gas or tried a lower octane than your usual -- budd cochran not extremely loud but i can hear it when the windows are rolled down. it knocks only under acceleration but not necessarily hard acceleration. it seems to knock the most at 65 mph at somewhat cruising speed. when i let off the acceleration it stops. sounds more like marbles than a hard metal-on-metal sound. i guess it mostly sounds like a loud sewing machine. guy how loud hard metal against metal or a can full of marbles when does it knock under acceleration deceleration cruising -- budd cochran hello all i have an 87 dodge ram 5.2l 4x4 automatic. lately ive noticed the engine knocking immediately after starting it and when driving highway speeds. im thinking that im screwed and it might be the rods. is there anything i should try before getting it rebuilt maybe some thicker oil or something; i have 10w30 in it now. thanks guy .
From : pjpj
sounds more like pinging to me. check the timing -- hello all i have an 87 dodge ram 5.2l 4x4 automatic. lately ive noticed the engine knocking immediately after starting it and when driving highway speeds. im thinking that im screwed and it might be the rods. is there anything i should try before getting it rebuilt maybe some thicker oil or something; i have 10w30 in it now. thanks guy .
From : pj
check timing - spark plugs - wires sounds like pinging to me. hello all i have an 87 dodge ram 5.2l 4x4 automatic. lately ive noticed the engine knocking immediately after starting it and when driving highway speeds. im thinking that im screwed and it might be the rods. is there anything i should try before getting it rebuilt maybe some thicker oil or something; i have 10w30 in it now. thanks guy .
From : tom lawrence
no i havent changed gas yet. im using 89 currently no specific brand. ill try 87 on the next fill up. wrong direction. you want to try 93 for the next couple of tanks. .
From : im rightdaguy
yes and buy the new stereo and speakers at www.bought4less.com anybody know if they run wires to the non-existing rear speakers on a truck with a cheap factory radio i want to put rear speakers in when i replace the radio and just wanted to know if the wires were there or not. .
From : ronald oberloh
i am experiencing the same think on a 1983 ford f-250 with a 460. i know it is pre ignition but what changed to cause it to start now after 160000 miles. i have checked or replaced all the obvious like the vacuum advance but other than changing the timing or use better gas i am at a loss. just took a 4000 mile trip and it run goo up until the last few hundred miles. i have all new gas also so that isnt the problem. i am now wondering if it in in the egr system. i have checked the egr value and it is functioning ok but their is a couple of boxes before it that might not be working correctly and might not be opening the value when it is suppose to. i guess my next attemp to trouble shoot it will be to add a vacuum gauge to the line feeding the egr valve and see if it ever gets any vacuum. ron guy lee wrote hello all i have an 87 dodge ram 5.2l 4x4 automatic. lately ive noticed the engine knocking immediately after starting it and when driving highway speeds. im thinking that im screwed and it might be the rods. is there anything i should try before getting it rebuilt maybe some thicker oil or something; i have 10w30 in it now. thanks guy .
From : mike simmons
on both the above referenced high mileage vehicles the problem may be pinging due to excessive carbon build up in the combustion chambers. try a good combustion chamber cleaner and follow the directions on the label and see if that helps. if the problem is severe a second treatment may be necessary to alleviate the problem if thats what it is. mike check timing - spark plugs - wires sounds like pinging to me. hello all i have an 87 dodge ram 5.2l 4x4 automatic. lately ive noticed the engine knocking immediately after starting it and when driving highway speeds. im thinking that im screwed and it might be the rods. is there anything i should try before getting it rebuilt maybe some thicker oil or something; i have 10w30 in it now. thanks guy .
From : guy lee
mike thanks for the suggestion. i have noticed a small amount of black water maybe carbon coming from my tailpipe. in fact i have splattered my wifes minivan a few times while cranking my truck. at first i thought it was oil but it wiped off easily. i wonder if the two are related... g on both the above referenced high mileage vehicles the problem may be pinging due to excessive carbon build up in the combustion chambers. try a good combustion chamber cleaner and follow the directions on the label and see if that helps. if the problem is severe a second treatment may be necessary to alleviate the problem if thats what it is. mike check timing - spark plugs - wires sounds like pinging to me. hello all i have an 87 dodge ram 5.2l 4x4 automatic. lately ive noticed the engine knocking immediately after starting it and when driving highway speeds. im thinking that im screwed and it might be the rods. is there anything i should try before getting it rebuilt maybe some thicker oil or something; i have 10w30 in it now. thanks guy .
From : dennyguy lee
8vfapv83k9prbm75e2pcce2e7lguva4gob@4ax.com mac davis mac.davis@comcast.net wrote on tue 21 oct 2003 001156 gmt ron s. rwsulli@nospamearthlink.net wrote it is very obvious that tom is a professional and a gentleman also. every time there is a problem he is there with a no nonsense answer unlike some of the people that get into a flaming match that has no bearing on anything. my our highest thanks go out to you tom. ron that surly sounds like tom to me! *wiping coffee of keyboard* i thought you were referring to tbone yonzie well look what the cat drug in. where ya been for the last six months and dont tell us you was taken care of the ole lady all that time...... vbg denny .
From : guy lee
no i havent changed gas yet. im using 89 currently no specific brand. ill try 87 on the next fill up. do you recommend any gas company over another g sounds like you got a bad case of pinging not bearing noise. have you changed brands of gas or tried a lower octane than your usual -- budd cochran not extremely loud but i can hear it when the windows are rolled down. it knocks only under acceleration but not necessarily hard acceleration. it seems to knock the most at 65 mph at somewhat cruising speed. when i let off the acceleration it stops. sounds more like marbles than a hard metal-on-metal sound. i guess it mostly sounds like a loud sewing machine. guy how loud hard metal against metal or a can full of marbles when does it knock under acceleration deceleration cruising -- budd cochran hello all i have an 87 dodge ram 5.2l 4x4 automatic. lately ive noticed the engine knocking immediately after starting it and when driving highway speeds. im thinking that im screwed and it might be the rods. is there anything i should try before getting it rebuilt maybe some thicker oil or something; i have 10w30 in it now. thanks guy .
From : guy lee
ill check the timing when i get home. ive had issues setting the timing in the past. i finally took it to a mechanic who made it run better; however no one is perfect. thanks g check timing - spark plugs - wires sounds like pinging to me. hello all i have an 87 dodge ram 5.2l 4x4 automatic. lately ive noticed the engine knocking immediately after starting it and when driving highway speeds. im thinking that im screwed and it might be the rods. is there anything i should try before getting it rebuilt maybe some thicker oil or something; i have 10w30 in it now. thanks guy .
From : ronald oberloh
good suggestion but did that also with no difference. i usually use the water treatment. take about a quart and squirt it into the carb a little at a time. i do get some carbon build up on a different car and the water treatment takes care of it right away. ron mike simmons wrote on both the above referenced high mileage vehicles the problem may be pinging due to excessive carbon build up in the combustion chambers. try a good combustion chamber cleaner and follow the directions on the label and see if that helps. if the problem is severe a second treatment may be necessary to alleviate the problem if thats what it is. mike check timing - spark plugs - wires sounds like pinging to me. hello all i have an 87 dodge ram 5.2l 4x4 automatic. lately ive noticed the engine knocking immediately after starting it and when driving highway speeds. im thinking that im screwed and it might be the rods. is there anything i should try before getting it rebuilt maybe some thicker oil or something; i have 10w30 in it now. thanks guy .