Last post on Nov 17, 2013 at 1:29 PM
You are in the Isuzu Trooper
What is this discussion about?
Isuzu Trooper, Isuzu Trooper II, Transmission, SUV
#156 of 167 isuzu trooper possible transmission problems
Apr 07, 2013 (4:38 pm)
I have a 1989 Isuzu Trooper that runs great but it sometimes has a problem with what I think may be the overdrive on the automatic transmission not turning off because it will go 60 on the highway at around 3500 rpm and I'll have to hold it that way for a while before it will drop into 3rd gear and run at about 2000 rpm finally. I also notice that when I drive it in neighborhood areas it won't go into neutral and slows down unless I constantly hold the gas. They recently did transmission work on it before I got it but I don't know what they did... what could it be?
#157 of 167 isuzu trooper transmission squeal
Apr 24, 2013 (7:48 am)
I have a 2001 trooper that has a high pitched squeal when in gear. It is fine in neutral and I believe in reverse. Any suggestions?
#158 of 167 Re: isuzu trooper transmission squeal [twomel]
Apr 24, 2013 (10:11 am)
Transmission issues are serious and the most difficult to decipher. You must provide more information. Should we assume yours is an automatic transmission? In any event, the fluid level is the first check. You must go underneath the car to the transmission itself to check. There is no 'through the chassis/body' dipstick like the oil. When removing the the transmission filler cap, the fluid is to be level with the filler hole (provided you are on a level surface). If not top it up.
If you discover there is continuous noise after this procedure, you should have it towed to a transmission mechanic. If your Trooper is a 4wd Limited version like mine you should consider checking all the drive fluids: Front axels, slip differential, etc. even the propeller shaft has grease fittings (don't let any shop tell you otherwise)
#159 of 167 Re: isuzu trooper transmission squeal [speedrover2]
Apr 24, 2013 (4:38 pm)
Sorry for the lack of detail. It is a 2wd automatic. We had the transmission flushed and it has been looked at by a few mechanics with no idea what the problem might be. It has squealed like this for at least a year or more. It seems to drive fine, but is very noticable at low gears - possibly because I am stopped or the engine masks the noise. It is a very high pitched sound.
#160 of 167 Re: 1997 Isuzu trooper transmission /Linkage? [n2rnr]
Jul 23, 2013 (8:26 am)
I just purchased a 98 Trooper and have the same problem. The engine was completely rebuild. Transmission fluid fleshed. I was driving it yesterday and the truck went into false neutral and rev'ed. When I step on the gas it rev'ed higher and did not engage until I slow down or I put it in 3rd. Anyone has any idea how I can resolve this problem? Many thanks for all the help
#161 of 167 Re: 1997 Isuzu trooper transmission /Linkage? [tc1522]
Jul 23, 2013 (9:17 am)
I would check the transmission fluid level first. You have to do this while the engine is running. There are some websites that explain how to do it. If you can't find it, I can send you directions. Since there is no dipstick for the transmission, you have to do it under the car as well. It may also need a new transmission filter too.
Sometimes my trooper revs up too, but I think it is just because the throttle sticks sometimes.
It does sound like a transmission problem. If it does need extra transmission fluid, you could put in the Lucas Transmission Fluid that fixes leaks and other transmission problems. It is really thick, so you may need to warm it up. You also have to pump it in like you would for the differentials.
#162 of 167 Re: 1997 Isuzu trooper transmission /Linkage? [tc1522]
Jul 23, 2013 (11:07 am)
Assuming yours is an Automatic Transmission it sounds as though your torque-converter is shot. It is the equivalent of a clutch on a manual transmission. Basically, the factory ones for 94 through 02 were pretty flimsy, basically cardboard. New torque-converters are all made of mesh carbon-fiber: Superior, lighter and essentially the same price. The labor, however is always the costly part.
If you're losing power to the wheels when revving high that could mean the torque-converter is slipping. In other words, the engine torque is not being converted to the transmission.
I had mine replaced on my 2002, I also had the transmission rebuilt just to make sure everything was SOLID. $2000 later.. it's fixed.
Your next alternative is to sell it to the transmission shop.
#163 of 167 Re: 1997 Isuzu trooper transmission /Linkage? [speedrover1]
Jul 24, 2013 (4:54 pm)
Thanks so much for your reply. I just ran around town today and it went into false neutral for a bid and I down shift it to 3rd and the trans engaged. After that I really did not have that problem again. Could it be some thing else. any feed back would be most appreciated.
Jul 25, 2013 (4:52 am)
Have you told us what type of transmission it is? Automatic or Manual? Or did I miss something in this thread?
#165 of 167 Re: Which is it? [speedrover1]
Jul 25, 2013 (5:57 am)
Hello speedrover1, I am sorry, I should have been more specific. It is an automatic transmission. It does not happen often. It is unpredictable when it gets false neutral. It happened to me going down the street which I can pull over or slow down until it catches gear. It is a difference story on the freeway. Funny thing is I drove the car down to Monterey and back which is a 4 hours drive with no problem. So I just wondering what else could it be?
As mentioned before, the engine is completely rebuilt. I even change the sensor on top of the motor. I'm just wondering, could it be another sensor? I read some where that there are three of them.
Any help would be most appreicated. Thanks