Hesitation at middle RPM under moderate load
in [Technical]
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From: Hachiroku ハチロク on 24 Jul 2010 18:09 On Sat, 24 Jul 2010 14:54:38 -0400, JoeSpareBedroom wrote: > "Hachiroku ????" <Trueno(a)e86.GTS> wrote in message > news:4c4b35b8$0$74748$afc38c87(a)read01.usenet4all.se... >> On Sat, 24 Jul 2010 12:39:11 -0400, JoeSpareBedroom wrote: >> >>> "Ray O" <rokigawa(a)NOSPAMtristarassociates.com> wrote in message >>> news:i2ere9$caf$1(a)news.eternal-september.org... >>>> >>>> "Clive" <clive(a)yewbank.demon.co.uk> wrote in message >>>> news:XkaPZWE1osSMFwaA(a)yewbank.demon.co.uk... >>>>> In message <i2drad$pc7$1(a)news.eternal-september.org>, Ray O >>>>> <rokigawa(a)NOSPAMtristarassociates.com> writes >>>>>>"Scott Dorsey" <kludge(a)panix.com> wrote in message >>>>>>news:i2c42f$2ga$1(a)panix2.panix.com... >>>>>>> Ray O <rokigawa(a)NOSPAMtristarassociates.com> wrote: >>>>>>>>I second the carbon buildup on the valves. Hook up a vacuum gauge, >>>>>>>>and >>>>>>>>when >>>>>>>>the problem is occurring, see if vacuum drops. If the Techron >>>>>>>>doesn't >>>>>>>>work, >>>>>>>>find a shop with Motor-Vac or that has a way to do the walnut shell >>>>>>>>blast. >>>>>>> The original poster mentioned using high-test gasoline in it just >>>>>>> because >>>>>>> it was cheap right now. >>>>>>> If you run enough high-test in an engine designed with fairly low >>>>>>> compression, >>>>>>> you're apt to wind up with carbon deposits as a result. >>>>>>> --scott >>>>>>Good point. Use what the owner's manual says to use. >>>>> Over here, we only get one Petrol and that's about 95 RON. De-coking, >>>>> or you might call it decarbonising is now very rare with today's modern >>>>> fuels, 50 years ago a de-coke might have been performed ever 20k or so >>>>> but with the detergents now in fuel a good blast down the motorway >>>>> normally cleans out any muck that might have accumulated during light >>>>> start stop, idling type of driving. >>>>> -- >>>>> Clive >>>>> >>>> >>>> I have not run across valves with deposits in a long time - I suppose >>>> that the fuel additives actually work! >>>> -- >>>> >>>> Ray O >>>> (correct punctuation to reply) >>> >>> >>> I wish there was an additive to make a catalytic converter stop burning >>> money. My check engine light came on 6 weeks ago, due to error code >>> P0420. >>> Inspection doesn't come around until November, and there are no other >>> symptoms, not even a change in mpg, so I'm putting off the repair until I >>> feel delighted to spend the money. Ha. Meanwhile, as a tease, the light >>> went >>> off for a week, then on again. >>> >>> 83k miles, 3k out of warranty, and Toyota (both the dealer and their >>> "help" >>> line) says "oh well have a nice day". >> >> Ask for escalation. Ask to speak to a supervisor or manager. If you have >> had more than one Toyota, so much the better. > > > That would mean spending ANOTHER 90 minutes waiting to speak to someone on > the phone. At some point, I'd have to jack up my cell plan to the next tier. > > Toyota is understaffed and hiding behind its phone system. > > Now there's a "campaign" (not a recall) which involves the application of > some kind of rust preventitive on the frame so the spare doesn't fall off > (02 Tacoma). Probably a half a can of Rustoleum and some spit. I've come to > the conclusion that Toyota is just kidding around, like the American > manufacturers were in the 1970s. I am afraid you might be correct... It used to be one hell of a car company. The other day I went to the parts department to get some bits for the Supra, and there was a pile of brand-new truck frames sitting there. They stopped buying them back last year or a couple years ago, and now strip the body off the rusting frame and put a new frame underneath.
From: JoeSpareBedroom on 24 Jul 2010 18:11 "Hachiroku ????" <Trueno(a)e86.GTS> wrote in message news:4c4b64c6$0$74748$afc38c87(a)read01.usenet4all.se... > On Sat, 24 Jul 2010 14:54:38 -0400, JoeSpareBedroom wrote: > >> "Hachiroku ????" <Trueno(a)e86.GTS> wrote in message >> news:4c4b35b8$0$74748$afc38c87(a)read01.usenet4all.se... >>> On Sat, 24 Jul 2010 12:39:11 -0400, JoeSpareBedroom wrote: >>> >>>> "Ray O" <rokigawa(a)NOSPAMtristarassociates.com> wrote in message >>>> news:i2ere9$caf$1(a)news.eternal-september.org... >>>>> >>>>> "Clive" <clive(a)yewbank.demon.co.uk> wrote in message >>>>> news:XkaPZWE1osSMFwaA(a)yewbank.demon.co.uk... >>>>>> In message <i2drad$pc7$1(a)news.eternal-september.org>, Ray O >>>>>> <rokigawa(a)NOSPAMtristarassociates.com> writes >>>>>>>"Scott Dorsey" <kludge(a)panix.com> wrote in message >>>>>>>news:i2c42f$2ga$1(a)panix2.panix.com... >>>>>>>> Ray O <rokigawa(a)NOSPAMtristarassociates.com> wrote: >>>>>>>>>I second the carbon buildup on the valves. Hook up a vacuum gauge, >>>>>>>>>and >>>>>>>>>when >>>>>>>>>the problem is occurring, see if vacuum drops. If the Techron >>>>>>>>>doesn't >>>>>>>>>work, >>>>>>>>>find a shop with Motor-Vac or that has a way to do the walnut shell >>>>>>>>>blast. >>>>>>>> The original poster mentioned using high-test gasoline in it just >>>>>>>> because >>>>>>>> it was cheap right now. >>>>>>>> If you run enough high-test in an engine designed with fairly low >>>>>>>> compression, >>>>>>>> you're apt to wind up with carbon deposits as a result. >>>>>>>> --scott >>>>>>>Good point. Use what the owner's manual says to use. >>>>>> Over here, we only get one Petrol and that's about 95 RON. >>>>>> De-coking, >>>>>> or you might call it decarbonising is now very rare with today's >>>>>> modern >>>>>> fuels, 50 years ago a de-coke might have been performed ever 20k or >>>>>> so >>>>>> but with the detergents now in fuel a good blast down the motorway >>>>>> normally cleans out any muck that might have accumulated during light >>>>>> start stop, idling type of driving. >>>>>> -- >>>>>> Clive >>>>>> >>>>> >>>>> I have not run across valves with deposits in a long time - I suppose >>>>> that the fuel additives actually work! >>>>> -- >>>>> >>>>> Ray O >>>>> (correct punctuation to reply) >>>> >>>> >>>> I wish there was an additive to make a catalytic converter stop burning >>>> money. My check engine light came on 6 weeks ago, due to error code >>>> P0420. >>>> Inspection doesn't come around until November, and there are no other >>>> symptoms, not even a change in mpg, so I'm putting off the repair until >>>> I >>>> feel delighted to spend the money. Ha. Meanwhile, as a tease, the light >>>> went >>>> off for a week, then on again. >>>> >>>> 83k miles, 3k out of warranty, and Toyota (both the dealer and their >>>> "help" >>>> line) says "oh well have a nice day". >>> >>> Ask for escalation. Ask to speak to a supervisor or manager. If you have >>> had more than one Toyota, so much the better. >> >> >> That would mean spending ANOTHER 90 minutes waiting to speak to someone >> on >> the phone. At some point, I'd have to jack up my cell plan to the next >> tier. >> >> Toyota is understaffed and hiding behind its phone system. >> >> Now there's a "campaign" (not a recall) which involves the application of >> some kind of rust preventitive on the frame so the spare doesn't fall off >> (02 Tacoma). Probably a half a can of Rustoleum and some spit. I've come >> to >> the conclusion that Toyota is just kidding around, like the American >> manufacturers were in the 1970s. > > I am afraid you might be correct... > > It used to be one hell of a car company. > > > The other day I went to the parts department to get some bits for the > Supra, and there was a pile of brand-new truck frames sitting there. They > stopped buying them back last year or a couple years ago, and now strip > the body off the rusting frame and put a new frame underneath. I wouldn't mind if they did that to mine, but they'd probably insist that I empty the glove box & console first. What a chore.
From: Tegger on 24 Jul 2010 19:06 =?iso-2022-jp?q?Hachiroku_=1B$B%O%A%m%=2F=1B=28B?= <Trueno(a)e86.GTS> wrote in news:4c4b6410$0$74748$afc38c87(a)read01.usenet4all.se: > On Fri, 23 Jul 2010 02:22:36 +0000, Tegger wrote: > >> =?iso-2022-jp?q?Hachiroku_=1B$B%O%A%m%=2F=1B=28B?= <Trueno(a)e86.GTS> >> wrote in news:4c48df07$0$74748$afc38c87(a)read01.usenet4all.se: >> >>> The car in this case is a 1989 Mazda 626. It was running great until >>> the day before yesterday, and turned 190,000 miles last week. >>> >>> AT highway speeds it hesitates only a little bit, unless you start >>> going up a hill, then it starts sputtering. Normal around town >>> driving, not so much, unless you're going up a hill in third gear. >>> >>> Usually occurs around 3,000 to 3,500 RPM. Once you get about 3,500 >>> it smooths out unless going up a hill. >> >> >> >> Got EGR? Checked that"? > > Hmmmm..ya know, I had a 1990 Nissan 240SX. It had two connectors on > the transmission. One for the reverse lights, and one for.... > > One of my friends said, You know your backup lights were on most of > the way here? > > So, I reversed them. After a long, long time searching, I found that > Japanese cars (at least Nissans and Mazdas) have a connector to a > switch to 5th gear that cuts off the EGR when you're in 5th gear. How old is the coil? -- Tegger
From: Hachiroku ハチロク on 24 Jul 2010 20:15 On Sat, 24 Jul 2010 23:06:03 +0000, Tegger wrote: > =?iso-2022-jp?q?Hachiroku_=1B$B%O%A%m%=2F=1B=28B?= <Trueno(a)e86.GTS> > wrote in news:4c4b6410$0$74748$afc38c87(a)read01.usenet4all.se: > >> On Fri, 23 Jul 2010 02:22:36 +0000, Tegger wrote: >> >>> =?iso-2022-jp?q?Hachiroku_=1B$B%O%A%m%=2F=1B=28B?= <Trueno(a)e86.GTS> >>> wrote in news:4c48df07$0$74748$afc38c87(a)read01.usenet4all.se: >>> >>>> The car in this case is a 1989 Mazda 626. It was running great until >>>> the day before yesterday, and turned 190,000 miles last week. >>>> >>>> AT highway speeds it hesitates only a little bit, unless you start >>>> going up a hill, then it starts sputtering. Normal around town >>>> driving, not so much, unless you're going up a hill in third gear. >>>> >>>> Usually occurs around 3,000 to 3,500 RPM. Once you get about 3,500 >>>> it smooths out unless going up a hill. >>> >>> >>> >>> Got EGR? Checked that"? >> >> Hmmmm..ya know, I had a 1990 Nissan 240SX. It had two connectors on >> the transmission. One for the reverse lights, and one for.... >> >> One of my friends said, You know your backup lights were on most of >> the way here? >> >> So, I reversed them. After a long, long time searching, I found that >> Japanese cars (at least Nissans and Mazdas) have a connector to a >> switch to 5th gear that cuts off the EGR when you're in 5th gear. > > > > > How old is the coil? Um, 21 years.... There's a reason I love Japanese cars! It seems to be dissapating. I took it for a good rip on the motorway, and the hesitation is a lot less. I also added another bottle of Techron and filled with 89 octane before going.
From: Hachiroku ハチロク on 24 Jul 2010 20:15
On Sat, 24 Jul 2010 18:11:53 -0400, JoeSpareBedroom wrote: > "Hachiroku ????" <Trueno(a)e86.GTS> wrote in message > news:4c4b64c6$0$74748$afc38c87(a)read01.usenet4all.se... >> On Sat, 24 Jul 2010 14:54:38 -0400, JoeSpareBedroom wrote: >> >>> "Hachiroku ????" <Trueno(a)e86.GTS> wrote in message >>> news:4c4b35b8$0$74748$afc38c87(a)read01.usenet4all.se... >>>> On Sat, 24 Jul 2010 12:39:11 -0400, JoeSpareBedroom wrote: >>>> >>>>> "Ray O" <rokigawa(a)NOSPAMtristarassociates.com> wrote in message >>>>> news:i2ere9$caf$1(a)news.eternal-september.org... >>>>>> >>>>>> "Clive" <clive(a)yewbank.demon.co.uk> wrote in message >>>>>> news:XkaPZWE1osSMFwaA(a)yewbank.demon.co.uk... >>>>>>> In message <i2drad$pc7$1(a)news.eternal-september.org>, Ray O >>>>>>> <rokigawa(a)NOSPAMtristarassociates.com> writes >>>>>>>>"Scott Dorsey" <kludge(a)panix.com> wrote in message >>>>>>>>news:i2c42f$2ga$1(a)panix2.panix.com... >>>>>>>>> Ray O <rokigawa(a)NOSPAMtristarassociates.com> wrote: >>>>>>>>>>I second the carbon buildup on the valves. Hook up a vacuum gauge, >>>>>>>>>>and >>>>>>>>>>when >>>>>>>>>>the problem is occurring, see if vacuum drops. If the Techron >>>>>>>>>>doesn't >>>>>>>>>>work, >>>>>>>>>>find a shop with Motor-Vac or that has a way to do the walnut shell >>>>>>>>>>blast. >>>>>>>>> The original poster mentioned using high-test gasoline in it just >>>>>>>>> because >>>>>>>>> it was cheap right now. >>>>>>>>> If you run enough high-test in an engine designed with fairly low >>>>>>>>> compression, >>>>>>>>> you're apt to wind up with carbon deposits as a result. >>>>>>>>> --scott >>>>>>>>Good point. Use what the owner's manual says to use. >>>>>>> Over here, we only get one Petrol and that's about 95 RON. >>>>>>> De-coking, >>>>>>> or you might call it decarbonising is now very rare with today's >>>>>>> modern >>>>>>> fuels, 50 years ago a de-coke might have been performed ever 20k or >>>>>>> so >>>>>>> but with the detergents now in fuel a good blast down the motorway >>>>>>> normally cleans out any muck that might have accumulated during light >>>>>>> start stop, idling type of driving. >>>>>>> -- >>>>>>> Clive >>>>>>> >>>>>> >>>>>> I have not run across valves with deposits in a long time - I suppose >>>>>> that the fuel additives actually work! >>>>>> -- >>>>>> >>>>>> Ray O >>>>>> (correct punctuation to reply) >>>>> >>>>> >>>>> I wish there was an additive to make a catalytic converter stop burning >>>>> money. My check engine light came on 6 weeks ago, due to error code >>>>> P0420. >>>>> Inspection doesn't come around until November, and there are no other >>>>> symptoms, not even a change in mpg, so I'm putting off the repair until >>>>> I >>>>> feel delighted to spend the money. Ha. Meanwhile, as a tease, the light >>>>> went >>>>> off for a week, then on again. >>>>> >>>>> 83k miles, 3k out of warranty, and Toyota (both the dealer and their >>>>> "help" >>>>> line) says "oh well have a nice day". >>>> >>>> Ask for escalation. Ask to speak to a supervisor or manager. If you have >>>> had more than one Toyota, so much the better. >>> >>> >>> That would mean spending ANOTHER 90 minutes waiting to speak to someone >>> on >>> the phone. At some point, I'd have to jack up my cell plan to the next >>> tier. >>> >>> Toyota is understaffed and hiding behind its phone system. >>> >>> Now there's a "campaign" (not a recall) which involves the application of >>> some kind of rust preventitive on the frame so the spare doesn't fall off >>> (02 Tacoma). Probably a half a can of Rustoleum and some spit. I've come >>> to >>> the conclusion that Toyota is just kidding around, like the American >>> manufacturers were in the 1970s. >> >> I am afraid you might be correct... >> >> It used to be one hell of a car company. >> >> >> The other day I went to the parts department to get some bits for the >> Supra, and there was a pile of brand-new truck frames sitting there. They >> stopped buying them back last year or a couple years ago, and now strip >> the body off the rusting frame and put a new frame underneath. > > > I wouldn't mind if they did that to mine, but they'd probably insist that I > empty the glove box & console first. What a chore. I just tip my Daily Drivers on their side over a dumpster... |