Strange Behavior on Accelleration
From : langerhans
Q: salient info 2004 dodge durango ltd. hemi auto while driving today at about 65 mph 2100rpm i kicked down the accellerator to pass a truck. tranny seemed to kick down engine started to wind up but despite pedal to the metal the rpms refused to go over about 3900 and engine seemed to lose power. removing foot from pedal tranny apparently upshifted and i slowly crept past the truck at about 2600rpm. it was a hot day but a/c was off. no other unusual loads on vehicle and no mods. air filter was changed 3k ago. when i stopped the 3-click trick showed no codes. i did the throttle limit reset number but it just recurred while driving home. its still under warranty but with no codes i just know im going to get a could not duplicate at the dealer. any ideas what caused this and what i can do about it .
Replies:
From : borzoi
snoman admin@snoman.com wrote in try higher octane fuel ----------------- the snoman www.thesnoman.com and waste your money and possibly damage your engine. you have no clue and just toss out something without thinking it through sheeeesh! -- i am so confused borzoi .
From : peterd
on 20 jul 2006 172426 gmt borzoi bigbang@hotmail.com wrote snoman admin@snoman.com wrote in try higher octane fuel ----------------- the snoman www.thesnoman.com and waste your money and possibly damage your engine. damage your engine geeze where did you hear that... .
From : Annonymous
just a shadetree guess from someone totally unqualified but absent any codes id say take a look at the fuel delivery system. fuel pump pressure possible restriction in the fuel line clogged fuel filter.... langerhans@example.net writes salient info 2004 dodge durango ltd. hemi auto while driving today at about 65 mph 2100rpm i kicked down the accellerator to pass a truck. tranny seemed to kick down engine started to wind up but despite pedal to the metal the rpms refused to go over about 3900 and engine seemed to lose power. removing foot from pedal tranny apparently upshifted and i slowly crept past the truck at about 2600rpm. it was a hot day but a/c was off. no other unusual loads on vehicle and no mods. air filter was changed 3k ago. when i stopped the 3-click trick showed no codes. i did the throttle limit reset number but it just recurred while driving home. its still under warranty but with no codes i just know im going to get a could not duplicate at the dealer. any ideas what caused this and what i can do about it .
From : snoman
on wed 19 jul 2006 231023 gmt ramman@dodgecity.cc wrote just a shadetree guess from someone totally unqualified but absent any codes id say take a look at the fuel delivery system. fuel pump pressure possible restriction in the fuel line clogged fuel filter.... try higher octane fuel ----------------- the snoman www.thesnoman.com .
From : jmc
suddenly without warning langerhans exclaimed 20-jul-06 519 am salient info 2004 dodge durango ltd. hemi auto while driving today at about 65 mph 2100rpm i kicked down the accellerator to pass a truck. tranny seemed to kick down engine started to wind up but despite pedal to the metal the rpms refused to go over about 3900 and engine seemed to lose power. removing foot from pedal tranny apparently upshifted and i slowly crept past the truck at about 2600rpm. it was a hot day but a/c was off. no other unusual loads on vehicle and no mods. air filter was changed 3k ago. when i stopped the 3-click trick showed no codes. i did the throttle limit reset number but it just recurred while driving home. its still under warranty but with no codes i just know im going to get a could not duplicate at the dealer. any ideas what caused this and what i can do about it something very similar happens very occassionally with my 2001 dakota - first incident in fact was on the second day i owned the truck. mine however happens when im going slow and temperature has no bearing. in fact all times but one i was backing up then going forward when the same thing would happen - press the pedal no power - mine would try to stall. i would just turn it off then back on and the truck would be fine. this usually happens only once or twice a year. the last time though it happened while we were in traffic going through glasgow scotland. going slow but this time in second so a bit faster same thing happened. stopped turned off back on worked fine. ive only just gotten my truck back on the road after yet another overseas move so i cant say yet if the glasgow incident indicates the problem is getting worse or if it was just a one time thing. id always figured it was a problem between the pedal and the seat whats the throttle limit reset number jmc .
From : langerhans
snoman wrote on wed 19 jul 2006 231023 gmt ramman@dodgecity.cc wrote just a shadetree guess from someone totally unqualified but absent any codes id say take a look at the fuel delivery system. fuel pump pressure possible restriction in the fuel line clogged fuel filter.... try higher octane fuel tank was 3/4 full of name brand 89 octane. btw i tried to reproduce the problem today and couldnt. i put my foot in it at 60 and was at 90 and still accellerating in short order. thats why i bought a hemi. does anyone know if a code would be set based on poor fuel delivery ill have to dig out the fsm to find the fuel filter. if its an inline cartridge i suppose its worth changing. if its an on-the-pump-in-the-tank unit i think ill wait for more repeatability before undertaking that chore. .
From : mike simmons
salient info 2004 dodge durango ltd. hemi auto while driving today at about 65 mph 2100rpm i kicked down the accellerator to pass a truck. tranny seemed to kick down engine started to wind up but despite pedal to the metal the rpms refused to go over about 3900 and engine seemed to lose power. removing foot from pedal tranny apparently upshifted and i slowly crept past the truck at about 2600rpm. it was a hot day but a/c was off. no other unusual loads on vehicle and no mods. air filter was changed 3k ago. when i stopped the 3-click trick showed no codes. i did the throttle limit reset number but it just recurred while driving home. its still under warranty but with no codes i just know im going to get a could not duplicate at the dealer. any ideas what caused this and what i can do about it at this point the best thing to do about it is nothing. it may have been a one-time software glitch that will never reoccur again. keep in mind that everything under the hood is controlled by a series of computers and sensors and it is not uncommon to have a random one-time event occur. if the problem repeats itself or if you get some sort of warning lamp then its time to have the vehicle diagnosed and repaired. mike .
From : jmc
suddenly without warning borzoi exclaimed 21-jul-06 254 am snoman admin@snoman.com wrote in try higher octane fuel ----------------- the snoman www.thesnoman.com and waste your money and possibly damage your engine. you have no clue and just toss out something without thinking it through sheeeesh! well... actually ive been forced to use higher octane fuel than my trucks manual says 2001 dakota as i was in the uk and the lowest octane available was 93 no idea if the formula for determining octane is different. anyway three years running 93 octane on a truck rated for 87 and it seems to have survived with no ill effects. somewhere in the archives is the discussion that was sparked when i originally asked about this... jmc .
From : peterd
on thu 20 jul 2006 122849 -0500 langerhans langerhans@example.net wrote btw i tried to reproduce the problem today and couldnt. i put my foot in it at 60 and was at 90 and still accellerating in short order. thats why i bought a hemi. ah its a hemi! im convinced that the hemis engine management system is less than perfect. mine does things that i consider rather odd as well on a it feels like it basis. btw whats the top end on yours .
From : denny
on 20 jul 2006 172426 gmt borzoi bigbang@hotmail.com wrote and waste your money and possibly damage your engine. you have no clue and just toss out something without thinking it through you are the truely clueless one here with no real grasp on engine operation orfuel knock cotrol and the effect it has on engine performance. the hotter it gets the more octane it needs and your statement of damaging the engine with it really shows your total lack of understanding here because low octane fuel can indeed damage a engine and at the very least shorten vale life because the kncok vibrations even at a level below hearing it cause valse to vibrate in seat which causes leakage that can lead to eroision with time. the blind leading the blind. what a surprize sometime hook up a real time obd2 monitor and what engine time on a hot day with 87 octan and then with 89 or 93 and the difference is plan to see if you can figure out how to use one that is ----------------- the snoman www.thesnoman.com hey snoidiot didnt you give me a rash of trash a while back about a few typos and that i should educate my kids instead of teaching them to shoot im not gonna mention a thing about that trash you just pecked out.. denny .
From : roy
on 20 jul 2006 172426 gmt borzoi bigbang@hotmail.com wrote and waste your money and possibly damage your engine. you have no clue and just toss out something without thinking it through you are the truely clueless one here with no real grasp on engine operation orfuel knock cotrol and the effect it has on engine performance. the hotter it gets the more octane it needs and your statement of damaging the engine with it really shows your total lack of understanding here because low octane fuel can indeed damage a engine and at the very least shorten vale life because the kncok vibrations even at a level below hearing it cause valse to vibrate in seat which causes leakage that can lead to eroision with time. the blind leading the blind. what a surprize sometime hook up a real time obd2 monitor and what engine time on a hot day with 87 octan and then with 89 or 93 and the difference is plan to see if you can figure out how to use one that is ----------------- the snoman www.thesnoman.com hey snoidiot didnt you give me a rash of trash a while back about a few typos and that i should educate my kids instead of teaching them to shoot im not gonna mention a thing about that trash you just pecked out.. denny it isnt just this trash it is the constant trash he pecks out. ya had her back to the range let her get comfortable with the ar then give her a few 30 round mags and let her have at it. bfg roy .
From : langerhans
peterd wrote ah its a hemi! im convinced that the hemis engine management system is less than perfect. mine does things that i consider rather odd as well on a it feels like it basis. btw whats the top end on yours as advertised it appears to have a governor at 111 mph. but it still pulls hard at 110. .
From : snoman
on 20 jul 2006 172426 gmt borzoi bigbang@hotmail.com wrote and waste your money and possibly damage your engine. you have no clue and just toss out something without thinking it through you are the truely clueless one here with no real grasp on engine operation orfuel knock cotrol and the effect it has on engine performance. the hotter it gets the more octane it needs and your statement of damaging the engine with it really shows your total lack of understanding here because low octane fuel can indeed damage a engine and at the very least shorten vale life because the kncok vibrations even at a level below hearing it cause valse to vibrate in seat which causes leakage that can lead to eroision with time. the blind leading the blind. what a surprize sometime hook up a real time obd2 monitor and what engine time on a hot day with 87 octan and then with 89 or 93 and the difference is plan to see if you can figure out how to use one that is ----------------- the snoman www.thesnoman.com .
From : Annonymous
langerhans@example.net writes on wed 19 jul 2006 231023 gmt ramman@dodgecity.cc wrote just a shadetree guess from someone totally unqualified but absent any codes id say take a look at the fuel delivery system. fuel pump pressure possible restriction in the fuel line clogged fuel filter.... tank was 3/4 full of name brand 89 octane. btw i tried to reproduce the problem today and couldnt. i put my foot in it at 60 and was at 90 and still accellerating in short order. thats why i bought a hemi. does anyone know if a code would be set based on poor fuel delivery ill have to dig out the fsm to find the fuel filter. if its an inline cartridge i suppose its worth changing. if its an on-the-pump-in-the-tank unit i think ill wait for more repeatability before undertaking that chore. have you switched recently willingly or otherwise to the new 10% ethanol blend fuel have you recently run extremely low on fuel if so there is always a possibility some varnish or other tank crud has decided to come forward & gum things up. still i wouldnt concern myself just yet unless the problem continues happening. .
From : jph
langerhans wrote tank was 3/4 full of name brand 89 octane. btw i tried to reproduce the problem today and couldnt. i put my foot in it at 60 and was at 90 and still accellerating in short order. thats why i bought a hemi. does anyone know if a code would be set based on poor fuel delivery ill have to dig out the fsm to find the fuel filter. if its an inline cartridge i suppose its worth changing. if its an on-the-pump-in-the-tank unit i think ill wait for more repeatability before undertaking that chore. only time i had a problem like that was after stopping on a really hot day and then getting back in a few minutes later and driving. by the time i got about 2 miles down the road the vapor lock that occurred from an overheated fuel line finally kept the fuel from reaching the carburetor. i dont know if fuel injection systems can suffer the same fate but mine just coasted a bit until the air block passed and the fuel started flowing again. if you had stopped for just a few minutes just before it happened then the underhood heat may possibly have caused the same problem with your truck. jph .
From : langerhans
jmc wrote whats the throttle limit reset number jmc turn key to on but dont start. press gas pedal to floor. release. turn key to off. supposedly this teaches the computer the limits of travel of your pedal. .
From : denny
roy probably going back out sun. afternoon. by the way she keeps eyeing the two mausers i think she is thinking of knocking me off so she can inherit.... probably just kick yer ass and take it.vbg she says ars are for sissys...sorry friend... bg hey!!! is this the one that i met in maine nope that was my youngest kid cari. she will go with me on occasion but she has to be really bored. julie is my middle daughter that shoots with me a bunch and becky my oldest would if she didnt live three hours away. denny .
From : denny
on 20 jul 2006 172426 gmt borzoi bigbang@hotmail.com wrote and waste your money and possibly damage your engine. you have no clue and just toss out something without thinking it through you are the truely clueless one here with no real grasp on engine operation orfuel knock cotrol and the effect it has on engine performance. the hotter it gets the more octane it needs and your statement of damaging the engine with it really shows your total lack of understanding here because low octane fuel can indeed damage a engine and at the very least shorten vale life because the kncok vibrations even at a level below hearing it cause valse to vibrate in seat which causes leakage that can lead to eroision with time. the blind leading the blind. what a surprize sometime hook up a real time obd2 monitor and what engine time on a hot day with 87 octan and then with 89 or 93 and the difference is plan to see if you can figure out how to use one that is ----------------- the snoman www.thesnoman.com hey snoidiot didnt you give me a rash of trash a while back about a few typos and that i should educate my kids instead of teaching them to shoot im not gonna mention a thing about that trash you just pecked out.. denny it isnt just this trash it is the constant trash he pecks out. ya had her back to the range let her get comfortable with the ar then give her a few 30 round mags and let her have at it. bfg roy probably going back out sun. afternoon. by the way she keeps eyeing the two mausers i think she is thinking of knocking me off so she can inherit.... she says ars are for sissys...sorry friend... bg maybe if i could teach her to bump fire shed change her mind.. denny .
From : peterd
on thu 20 jul 2006 173200 -0500 langerhans langerhans@example.net wrote peterd wrote ah its a hemi! im convinced that the hemis engine management system is less than perfect. mine does things that i consider rather odd as well on a it feels like it basis. btw whats the top end on yours as advertised it appears to have a governor at 111 mph. but it still pulls hard at 110. rofl that shouldnt take much to fix! .
From : roy
on 20 jul 2006 172426 gmt borzoi bigbang@hotmail.com wrote and waste your money and possibly damage your engine. you have no clue and just toss out something without thinking it through you are the truely clueless one here with no real grasp on engine operation orfuel knock cotrol and the effect it has on engine performance. the hotter it gets the more octane it needs and your statement of damaging the engine with it really shows your total lack of understanding here because low octane fuel can indeed damage a engine and at the very least shorten vale life because the kncok vibrations even at a level below hearing it cause valse to vibrate in seat which causes leakage that can lead to eroision with time. the blind leading the blind. what a surprize sometime hook up a real time obd2 monitor and what engine time on a hot day with 87 octan and then with 89 or 93 and the difference is plan to see if you can figure out how to use one that is ----------------- the snoman www.thesnoman.com hey snoidiot didnt you give me a rash of trash a while back about a few typos and that i should educate my kids instead of teaching them to shoot im not gonna mention a thing about that trash you just pecked out.. denny it isnt just this trash it is the constant trash he pecks out. ya had her back to the range let her get comfortable with the ar then give her a few 30 round mags and let her have at it. bfg roy probably going back out sun. afternoon. by the way she keeps eyeing the two mausers i think she is thinking of knocking me off so she can inherit.... probably just kick yer ass and take it.vbg she says ars are for sissys...sorry friend... bg hey!!! is this the one that i met in maine roy maybe if i could teach her to bump fire shed change her mind.. denny .
From : roy
roy probably going back out sun. afternoon. by the way she keeps eyeing the two mausers i think she is thinking of knocking me off so she can inherit.... probably just kick yer ass and take it.vbg she says ars are for sissys...sorry friend... bg hey!!! is this the one that i met in maine nope that was my youngest kid cari. a real nice girl. she will go with me on occasion but she has to be really bored. let her play with the ar given the size and weight i would think it would be easier for them to fire. the boredom will pass. roy .