Nervous, Worried, Help Please!

[maxw]

ISUZU issued a bulletin about this some time ago to their dealers/mechanics . Apparently the drive shaft length is such that gear changes can induce a clunk which is not necessarily abnormal. This is minimized by driving in the normal mode, ie not in Power mode.
I enquired about the same thing in mine and it is variable.
Just something to think about after you've considered the other above suggestions.
The VX is still a hell of alot of fun to drive tho'.
Safe driving to you.

[Maugan_VX]

my stuff clunks all the time. All of my auto zu's have.

Go get a transmission service if you need to calm your nerves

[nfpgasmask]

Hmmm, yeah, this morning I drove into work with "POWER" turned on, and everything was ok. So, in the last 24 hours, this only happened for the one little drive I made from the post office yesterday. And I know everyone is saying that the shifting is normally a little clunky, but again, this was abnormal shifting, I am sure of this.

Anyway, my little "jumping spider" is driving like a champ at the moment, so I will keep everyone posted.

Thanks everyone.

Bart

[VehiGAZ]

I had a one-time occurrance of really-hard-gearchanges, which sounds like your problem. It happened on one trip only, and only affected the 1-2 and 2-3 gearchanges. The gear changes slammed hard, but otherwise everything worked. It went away after shutting off and restarting the VX, and hasn't been back since.

[nfpgasmask]

I had a one-time occurrance of really-hard-gearchanges, which sounds like your problem. It happened on one trip only, and only affected the 1-2 and 2-3 gearchanges. The gear changes slammed hard, but otherwise everything worked. It went away after shutting off and restarting the VX, and hasn't been back since.

So far, this is exactly my experience, but it has only been 24 hours. When 3 months pass with no issues, then I will consider it a fluke. Until then, I am still worried!

Bart

[Tornado]

Mine did the exact same thing, and off to the dealer it went. It threw the code for the electric do-dad in the side of the transmission. They replaced it under warranty and all has been fine since. I figure it's better to get it replaced on there dime early on then mine later!

[nfpgasmask]

Yeah, so it has been almost 2 weeks since I reported this incident, and to date it has not happened again. I have been driving in "POWER" mode mostly (what can I say, other than its better). I am just hoping it stays free of this weird shifting issue going foward.

Thanks everyone for the info.

Bart

[VehiX]

I had a one-time occurrance of really-hard-gearchanges, which sounds like your problem. It happened on one trip only, and only affected the 1-2 and 2-3 gearchanges. The gear changes slammed hard, but otherwise everything worked. It went away after shutting off and restarting the VX, and hasn't been back since.

This happened to me as well, exactly as you've stated. It only happened once and never happened again. It scared the heck out of me too, I'll tell ya that. It tooks a few weeks for me to stop worrying and thinking about it!

BTW, a code was never thrown when it happened to me

[nfpgasmask]

OK, so this morning it happened again on my way into work. It seems to always be the 2nd to 3rd shift (about 20mph), and it seems to do it mostly after a quick downshift while decelerating then accelerating again in typical crappy Chicago traffic. I was in Power Mode.

When I noticed it, I quickly pulled over, turned off, and restarted again. I turned Power Drive off, and after doing this I had no problem for the remainder of my drive.

When I had the oil changed, I believe they checked the tranny fluid level and it was fine. I will make a point to check it again however.

Other than that, my truck only has 26,500 miles, but could it still be the mode selector? I suppose it wouldn't hurt to change it out for a new one???

0_o Bart

[Anita]

Yes, it still could be the mode switch. It some cases it happens sporadically. Hard, even violent gear shifts definitely can be the switch.

[Tone]

An indicator of the mode switch failing is the illumination of the gear selection in the cluster is out.

[nfpgasmask]

I suppose it wouldn't hurt to swap it out. I've been paying attention to the RPMs, and it seems like when it happens, the gear box is trying to shift up from 2nd to 3rd a tad to early, causing the harsch "clunk" and a few of my nerves getting shredded each time

Thanks - Bart

Yes, it still could be the mode switch. It some cases it happens sporadically. Hard, even violent gear shifts definitely can be the switch.

[nfpgasmask]

Are you talking about in the center of the dash or the on the TOD cluster? I have not noticed any lights out, but I will make a point to watch for this.

Thanks.

Bart

An indicator of the mode switch failing is the illumination of the gear selection in the cluster is out.

[nfpgasmask]

OK, so it seems like this hateful "clunking" takes place mostly when I am in Power Drive. So what is going on when Power Drive is enabled that could cause this shift slamming?

Bart

[etlsport]

power mode lets you rev a little higher than you normally would.. could just be that your gears are spinning faster when the shift happens, so more noticable clunk?