Transmission starting to fail possibly???

TokeyginGAGT · 07-07-2013, 12:24 PM

when shifting into gears transmission jumps, at times when put into reverse it takes a couple seconds to shift into gear, when put in drive and driving it shifts hard into first gear at 3000-3500 rpms

any advice would be helpful.....

zukiracer19 · 07-07-2013, 01:22 PM

Time for a new tranny. Mine goes in Tuesday.

sleepyalero · 07-07-2013, 05:15 PM

Any intake sensors unplugged?

sugar ray · 07-07-2013, 08:31 PM

I had this issue once with my 02. Almost feels like a shift kit installed with hard shifts to first. It was a bad tps for me. Aka. Throttle position sensor. Kind of expensive for a new one but you can get one cheap from a wrecking yard. If your tranny is on the way out it may not matter now but have you ever changed the tranny oil? Upgrading from dex 3 to 6 is a nice option but make sure you have a good tranny before doing so.

PhantomLover007 · 07-08-2013, 08:00 AM

My GA started acting up coming home last night and had 100+ miles to get to home. Seemed like it really wasn't moving, but when I gave it gas, the RPMs were high. Had to hit 85 or 90 mph for it to shift to 4th gear. Started throwing 0123 codes (throttle position sensor). Just at idle, RPMs were around 2000 RPMs. Hard shifts from 1st to 2nd. Shifts normally around 3000-3500 RPMs.

A new sensor from Advanced Auto is around $40. Seems a pretty easy install.

[ChaosweaveR] · 07-08-2013, 08:14 AM

Yeah, a bad TPS or IAT sensor can make the trans act haywire.

Happened to me a long time ago when I left the IAT sensor unplugged. Banged hard into every gear, sounded like the trans was about to die. Realized the IAT sensor was disconnected the next day, plugged it in, trans went back to normal.

AleroB888 · 07-08-2013, 08:53 AM

Quote:

Originally Posted by PhantomLover007

My GA started acting up coming home last night and had 100+ miles to get to home. Seemed like it really wasn't moving, but when I gave it gas, the RPMs were high. Had to hit 85 or 90 mph for it to shift to 4th gear. Started throwing 0123 codes (throttle position sensor). Just at idle, RPMs were around 2000 RPMs. Hard shifts from 1st to 2nd. Shifts normally around 3000-3500 RPMs.

A new sensor from Advanced Auto is around $40. Seems a pretty easy install.

Buyer beware! the local parts stores, Autozone, O'Reilly's, etc. are stocking 2 different generic replacements for TPS, one of which is cheap and flimsy compared to the original. I had to take one back because it was defective right out of the box, read 4-7 % @ zero.

Get one that has the same size (larger) ball bearing inside.

PhantomLover007 · 07-08-2013, 11:51 AM

Quote:

Originally Posted by AleroB888

Buyer beware! the local parts stores, Autozone, O'Reilly's, etc. are stocking 2 different generic replacements for TPS, one of which is cheap and flimsy compared to the original. I had to take one back because it was defective right out of the box, read 4-7 % @ zero.

Get one that has the same size (larger) ball bearing inside.

Not cool.

Ball bearing????

This one

http://shop.advanceautoparts.com/web...985%7CL3*15362#

PhantomLover007 · 07-08-2013, 11:53 AM

Quote:

Originally Posted by [ChaosweaveR]

Yeah, a bad TPS or IAT sensor can make the trans act haywire.

Happened to me a long time ago when I left the IAT sensor unplugged. Banged hard into every gear, sounded like the trans was about to die. Realized the IAT sensor was disconnected the next day, plugged it in, trans went back to normal.

Ummm. Yeah... did that to mine too Chris. At the track...

AleroB888 · 07-08-2013, 12:10 PM

Quote:

Originally Posted by PhantomLover007

Not cool.

Ball bearing???

Inside the center part that slips over the throttle body shaft. If you have the original AC part, bring it with you to compare to the new one.

PhantomLover007 · 07-08-2013, 12:49 PM

Quote:

Originally Posted by AleroB888

Inside the center part that slips over the throttle body shaft. If you have the original AC part, bring it with you to compare to the new one.

Ah OK. So AC Delco is the OEM part?

If that's the case I sthink they sell that at Advanced and all..

TokeyginGAGT · 07-08-2013, 08:26 PM

wow thanks for the insight guys, i will get the transmission checked first to see if it is on the way out or if i just need to flush it and replace sensors.....ill keep you posted

PhantomLover007 · 07-10-2013, 06:20 AM

Got the Delphi brand and swapped out the TPS w/in 5 mins and everything was back to normal .. YAY!!!

07-07-2013, 12:24 PM	#1
TokeyginGAGT GAGT - Newbie AKA: carl Join Date: Apr 2013 Location: schenectady, ny Posts: 17 Vehicle: 2000 Grand Am GT Sedan	Transmission starting to fail possibly??? when shifting into gears transmission jumps, at times when put into reverse it takes a couple seconds to shift into gear, when put in drive and driving it shifts hard into first gear at 3000-3500 rpms any advice would be helpful.....

07-07-2013, 05:15 PM	#3
sleepyalero ▂ ▃ ▅ ▆ █ ▆ ▅ ▃ ▂ AKA: Nathan Join Date: Jul 2011 Location: Unknown. Posts: 5,911 Vehicle: 2001 olds alero GLS	Any intake sensors unplugged? __________________ 2001 \| Alero GLS \| 3400 \| 6MT 2012 BMW S1000RR, full exhaust, BRENTUNE, power commander 5, dyno tune, 198WHP.

07-08-2013, 08:14 AM	#6
[ChaosweaveR] So that's Vtec... AKA: Chris Join Date: Jul 2007 Location: Medford, NY Age: 36 Posts: 6,783 Vehicle: ‘15 Honda Accord Sport	Yeah, a bad TPS or IAT sensor can make the trans act haywire. Happened to me a long time ago when I left the IAT sensor unplugged. Banged hard into every gear, sounded like the trans was about to die. Realized the IAT sensor was disconnected the next day, plugged it in, trans went back to normal. __________________ 2015 Honda Accord Sport Sedan: K24W 2003 Mitsubishi Galant ES: 4G64

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07-07-2013, 01:22 PM	#2
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	Time for a new tranny. Mine goes in Tuesday.

07-07-2013, 08:31 PM	#4
sugar ray GAGT - Member AKA: Sean Join Date: Jun 2008 Location: Canada Posts: 233 Vehicle: 2002 Grand Am	I had this issue once with my 02. Almost feels like a shift kit installed with hard shifts to first. It was a bad tps for me. Aka. Throttle position sensor. Kind of expensive for a new one but you can get one cheap from a wrecking yard. If your tranny is on the way out it may not matter now but have you ever changed the tranny oil? Upgrading from dex 3 to 6 is a nice option but make sure you have a good tranny before doing so.

07-08-2013, 08:26 PM	#12
TokeyginGAGT GAGT - Newbie AKA: carl Join Date: Apr 2013 Location: schenectady, ny Posts: 17 Vehicle: 2000 Grand Am GT Sedan	wow thanks for the insight guys, i will get the transmission checked first to see if it is on the way out or if i just need to flush it and replace sensors.....ill keep you posted