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XJ Transmission Thump
Last fall I purchased a used 2001 Jeep Cherokee with about 60,000 miles
and no towing hitch. The transmission has a significant thump when it is shifted into drive when warm. In the morning there is no thump - the engine and transmission are cold. But if I am running around town doing errands, every time I shift into drive there is a noticeable noise and slight lurch. Sometimes it will even thump after sitting in the parking lot 8-10 hours after work. Last winter is wasn't so bad because the engine and transmission would cool down much more quickly. Any ideas or comments? Thanks --- mjb |
Re: XJ Transmission Thump
There are several things that would cause a harsh shift into drive; low
fluid, throttle linkage misadjusted,u-joints worn/broken, axle back lash incorrect, hydraulic pressure incorrect, band mis-adjustment, clutch, band planetary component damage, or the converter clutch faulty. Coasty <morgan@thedef.org> wrote in message news:1150854376.115440.251670@c74g2000cwc.googlegr oups.com... > Last fall I purchased a used 2001 Jeep Cherokee with about 60,000 miles > and no towing hitch. The transmission has a significant thump when it > is shifted into drive when warm. > > In the morning there is no thump - the engine and transmission are > cold. But if I am running around town doing errands, every time I shift > into drive there is a noticeable noise and slight lurch. Sometimes it > will even thump after sitting in the parking lot 8-10 hours after work. > > > Last winter is wasn't so bad because the engine and transmission would > cool down much more quickly. > > Any ideas or comments? > > Thanks --- mjb > |
Re: XJ Transmission Thump
There are several things that would cause a harsh shift into drive; low
fluid, throttle linkage misadjusted,u-joints worn/broken, axle back lash incorrect, hydraulic pressure incorrect, band mis-adjustment, clutch, band planetary component damage, or the converter clutch faulty. Coasty <morgan@thedef.org> wrote in message news:1150854376.115440.251670@c74g2000cwc.googlegr oups.com... > Last fall I purchased a used 2001 Jeep Cherokee with about 60,000 miles > and no towing hitch. The transmission has a significant thump when it > is shifted into drive when warm. > > In the morning there is no thump - the engine and transmission are > cold. But if I am running around town doing errands, every time I shift > into drive there is a noticeable noise and slight lurch. Sometimes it > will even thump after sitting in the parking lot 8-10 hours after work. > > > Last winter is wasn't so bad because the engine and transmission would > cool down much more quickly. > > Any ideas or comments? > > Thanks --- mjb > |
Re: XJ Transmission Thump
There are several things that would cause a harsh shift into drive; low
fluid, throttle linkage misadjusted,u-joints worn/broken, axle back lash incorrect, hydraulic pressure incorrect, band mis-adjustment, clutch, band planetary component damage, or the converter clutch faulty. Coasty <morgan@thedef.org> wrote in message news:1150854376.115440.251670@c74g2000cwc.googlegr oups.com... > Last fall I purchased a used 2001 Jeep Cherokee with about 60,000 miles > and no towing hitch. The transmission has a significant thump when it > is shifted into drive when warm. > > In the morning there is no thump - the engine and transmission are > cold. But if I am running around town doing errands, every time I shift > into drive there is a noticeable noise and slight lurch. Sometimes it > will even thump after sitting in the parking lot 8-10 hours after work. > > > Last winter is wasn't so bad because the engine and transmission would > cool down much more quickly. > > Any ideas or comments? > > Thanks --- mjb > |
Re: XJ Transmission Thump
Plus a bad engine or tranny mount, specifically I would look at the
driver's side first. It is near the exhaust and can get heat affected. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) Coasty wrote: > > There are several things that would cause a harsh shift into drive; low > fluid, throttle linkage misadjusted,u-joints worn/broken, axle back lash > incorrect, hydraulic pressure incorrect, band mis-adjustment, clutch, band > planetary component damage, or the converter clutch faulty. > Coasty > > <morgan@thedef.org> wrote in message > news:1150854376.115440.251670@c74g2000cwc.googlegr oups.com... > > Last fall I purchased a used 2001 Jeep Cherokee with about 60,000 miles > > and no towing hitch. The transmission has a significant thump when it > > is shifted into drive when warm. > > > > In the morning there is no thump - the engine and transmission are > > cold. But if I am running around town doing errands, every time I shift > > into drive there is a noticeable noise and slight lurch. Sometimes it > > will even thump after sitting in the parking lot 8-10 hours after work. > > > > > > Last winter is wasn't so bad because the engine and transmission would > > cool down much more quickly. > > > > Any ideas or comments? > > > > Thanks --- mjb > > |
Re: XJ Transmission Thump
Plus a bad engine or tranny mount, specifically I would look at the
driver's side first. It is near the exhaust and can get heat affected. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) Coasty wrote: > > There are several things that would cause a harsh shift into drive; low > fluid, throttle linkage misadjusted,u-joints worn/broken, axle back lash > incorrect, hydraulic pressure incorrect, band mis-adjustment, clutch, band > planetary component damage, or the converter clutch faulty. > Coasty > > <morgan@thedef.org> wrote in message > news:1150854376.115440.251670@c74g2000cwc.googlegr oups.com... > > Last fall I purchased a used 2001 Jeep Cherokee with about 60,000 miles > > and no towing hitch. The transmission has a significant thump when it > > is shifted into drive when warm. > > > > In the morning there is no thump - the engine and transmission are > > cold. But if I am running around town doing errands, every time I shift > > into drive there is a noticeable noise and slight lurch. Sometimes it > > will even thump after sitting in the parking lot 8-10 hours after work. > > > > > > Last winter is wasn't so bad because the engine and transmission would > > cool down much more quickly. > > > > Any ideas or comments? > > > > Thanks --- mjb > > |
Re: XJ Transmission Thump
Plus a bad engine or tranny mount, specifically I would look at the
driver's side first. It is near the exhaust and can get heat affected. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) Coasty wrote: > > There are several things that would cause a harsh shift into drive; low > fluid, throttle linkage misadjusted,u-joints worn/broken, axle back lash > incorrect, hydraulic pressure incorrect, band mis-adjustment, clutch, band > planetary component damage, or the converter clutch faulty. > Coasty > > <morgan@thedef.org> wrote in message > news:1150854376.115440.251670@c74g2000cwc.googlegr oups.com... > > Last fall I purchased a used 2001 Jeep Cherokee with about 60,000 miles > > and no towing hitch. The transmission has a significant thump when it > > is shifted into drive when warm. > > > > In the morning there is no thump - the engine and transmission are > > cold. But if I am running around town doing errands, every time I shift > > into drive there is a noticeable noise and slight lurch. Sometimes it > > will even thump after sitting in the parking lot 8-10 hours after work. > > > > > > Last winter is wasn't so bad because the engine and transmission would > > cool down much more quickly. > > > > Any ideas or comments? > > > > Thanks --- mjb > > |
Re: XJ Transmission Thump
sounds like a very fast idle speed to me
"Mike Romain" <romainm@sympatico.ca> wrote in message news:44994577.EB7ACAEC@sympatico.ca... > Plus a bad engine or tranny mount, specifically I would look at the > driver's side first. It is near the exhaust and can get heat affected. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > Canadian Off Road Trips Photos: Non members can still view! > Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 > (More Off Road album links at bottom of the view page) > > Coasty wrote: >> >> There are several things that would cause a harsh shift into drive; low >> fluid, throttle linkage misadjusted,u-joints worn/broken, axle back lash >> incorrect, hydraulic pressure incorrect, band mis-adjustment, clutch, >> band >> planetary component damage, or the converter clutch faulty. >> Coasty >> >> <morgan@thedef.org> wrote in message >> news:1150854376.115440.251670@c74g2000cwc.googlegr oups.com... >> > Last fall I purchased a used 2001 Jeep Cherokee with about 60,000 miles >> > and no towing hitch. The transmission has a significant thump when it >> > is shifted into drive when warm. >> > >> > In the morning there is no thump - the engine and transmission are >> > cold. But if I am running around town doing errands, every time I shift >> > into drive there is a noticeable noise and slight lurch. Sometimes it >> > will even thump after sitting in the parking lot 8-10 hours after work. >> > >> > >> > Last winter is wasn't so bad because the engine and transmission would >> > cool down much more quickly. >> > >> > Any ideas or comments? >> > >> > Thanks --- mjb >> > |
Re: XJ Transmission Thump
sounds like a very fast idle speed to me
"Mike Romain" <romainm@sympatico.ca> wrote in message news:44994577.EB7ACAEC@sympatico.ca... > Plus a bad engine or tranny mount, specifically I would look at the > driver's side first. It is near the exhaust and can get heat affected. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > Canadian Off Road Trips Photos: Non members can still view! > Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 > (More Off Road album links at bottom of the view page) > > Coasty wrote: >> >> There are several things that would cause a harsh shift into drive; low >> fluid, throttle linkage misadjusted,u-joints worn/broken, axle back lash >> incorrect, hydraulic pressure incorrect, band mis-adjustment, clutch, >> band >> planetary component damage, or the converter clutch faulty. >> Coasty >> >> <morgan@thedef.org> wrote in message >> news:1150854376.115440.251670@c74g2000cwc.googlegr oups.com... >> > Last fall I purchased a used 2001 Jeep Cherokee with about 60,000 miles >> > and no towing hitch. The transmission has a significant thump when it >> > is shifted into drive when warm. >> > >> > In the morning there is no thump - the engine and transmission are >> > cold. But if I am running around town doing errands, every time I shift >> > into drive there is a noticeable noise and slight lurch. Sometimes it >> > will even thump after sitting in the parking lot 8-10 hours after work. >> > >> > >> > Last winter is wasn't so bad because the engine and transmission would >> > cool down much more quickly. >> > >> > Any ideas or comments? >> > >> > Thanks --- mjb >> > |
Re: XJ Transmission Thump
sounds like a very fast idle speed to me
"Mike Romain" <romainm@sympatico.ca> wrote in message news:44994577.EB7ACAEC@sympatico.ca... > Plus a bad engine or tranny mount, specifically I would look at the > driver's side first. It is near the exhaust and can get heat affected. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > Canadian Off Road Trips Photos: Non members can still view! > Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 > (More Off Road album links at bottom of the view page) > > Coasty wrote: >> >> There are several things that would cause a harsh shift into drive; low >> fluid, throttle linkage misadjusted,u-joints worn/broken, axle back lash >> incorrect, hydraulic pressure incorrect, band mis-adjustment, clutch, >> band >> planetary component damage, or the converter clutch faulty. >> Coasty >> >> <morgan@thedef.org> wrote in message >> news:1150854376.115440.251670@c74g2000cwc.googlegr oups.com... >> > Last fall I purchased a used 2001 Jeep Cherokee with about 60,000 miles >> > and no towing hitch. The transmission has a significant thump when it >> > is shifted into drive when warm. >> > >> > In the morning there is no thump - the engine and transmission are >> > cold. But if I am running around town doing errands, every time I shift >> > into drive there is a noticeable noise and slight lurch. Sometimes it >> > will even thump after sitting in the parking lot 8-10 hours after work. >> > >> > >> > Last winter is wasn't so bad because the engine and transmission would >> > cool down much more quickly. >> > >> > Any ideas or comments? >> > >> > Thanks --- mjb >> > |
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