just a thought: my ford f150 has 2 shifting sensors. 1 of them outside and the other 1 inside of the tranny. my truck was doing the same thing. i replaced both of the sensors and it works fine now.

hope this helps,
daniel tyson

Could anybody answer me this, could a screwy torque converter cause shift points to be effected?

I don't think its just a shift point problem (which i'm told is the TV link) because what about the whole RPM thing? when you let off the gas, engine RPMS go to idle. Its like the engine rev's aren't syncin with the tranny revs until throttle is applied. Again, i know nothing about auto trannys, but this sounds like torq converter. anyone agree?

BTW, the tranny does hit all 3 gears. 2nd kicks in at 4500rpm, and 3rd at 5000rpm. I drove the car on the interstate for about 70 miles yesterday to get back from work. And other than some odd driving style on my part to keep the engine at speed and low rpms, everything went fine.

-Rob

Ok, I will say this one more time. The Tps controls the tq converter not the tv cable. When you press on the pedal it sounds like the tq is locking up thats why its hard to accelerate after you have let off the gas.

Now I am not 100% sure on this because I havent driven it my self, But I do know I had simalar problems with my 90 XJ and it was being caused by the TPS.

RB

RB - thanks for the help, the TPS is the next thing i'll check. I wasn't aware the TPS actually effect the torq converter. Looking up on Alldata, it looks like there are two TPSs, one for the ECU and one for the tranny. I'll let you know what i find.

Thanks,
-Rob

EDIT: I'm definitely starting to think you're onto something here. A little more research on Alldata revieled:

The most common failure on this sensor is a spike of voltage at approximately 1/4-1/3 throttle. If this condition exists, the TP must be replaced. The most common complaints for this sensor are in and out of lock-up and erratic shift timing.

<small>[ November 12, 2002, 09:46 AM: Message edited by: RobG ]</small>

Rob,

I forgot to mention the reason I jumped in on your thread with my own problem.

You shouldn't worry about being off topic, raising an apparent non-Isuzu problem. This may have some relevence. 1988-91 Isuzu autos use the AW30-80LE. This trans is more commonly known as the Aisin Warner A340H. The A340H (so named) was used in early 4Runners, and Jeep Cherokees (named the AW4 for Chrysler).

I was just thinking that, if yours is the AW4, we may be suffering symtoms of the same problem.

--Bighorn--

</font><blockquote><font size="1" face="Verdana, Tahoma, Arial, Helv, Helvetica, Sans">quote:</font><hr /><font size="2" face="Verdana, Tahoma, Arial, Helv, Helvetica, Sans">Originally posted by Mr. Bighorn:
<strong>I was just thinking that, if yours is the AW4, we may be suffering symtoms of the same problem.</strong></font><hr /></blockquote><font size="2" face="Verdana, Tahoma, Arial, Helv, Helvetica, Sans">Yup, through my research, i think the tranny is an AW4.

-Rob

you have to remember that you're dealing with an assanine Jeep. They tend to complicate things as much as possible. My xj sat in the driveway for a month while I replaced the distributer, coil and just about everything else trying to get some spark. They decided to put a crank sensor on the bellhousing to control spark instead of the using the distributer. <img border="0" title="" alt="[Mad]" src="images/icons/mad.gif" /> <img border="0" title="" alt="[Mad]" src="images/icons/mad.gif" /> Oh ya and I found out that the distributer controls injector timing. Go figure. So instead of using the Tv cable like anyone else would they put a TPS in there to throw us off.

RB

What was the final out come of this post? What fixed it?

wow, this is an old post! umm, there was no verdict. i gave it back to my buddy shifting like that. He said he was gonna take it to a mechanic friend of his rather than have me look at it any furthur.

But i think what i had almost 100% decided was it was a bad throttle positioning sensor. Some of the guys on JU seemed to confirm this.

-Rob