There are two plugs under the transmission (on the fluid pan) the lower one in the center is the drain plug, the other (upper) in the pan corner that is the fill plug. Make sure the fluid is properly warmed up car parked on a level spot then open up the fluid check / fill plug (upper in the corner). You will have to use a fluid pump to fill the transmission pan until the fluid runs out of the fill / check plug. Close and tighten the plug, warm up the fluid and check level again!
when accelerating, if the transmission seems to "jump" or "slip" and is fine after that, it's probably low on fluid. while the trooper is on and in park, pull out the transmission dipstick to read the fluid level. wherwe is the dip stick 2002 Isuzu trooper,thank you the 2002 trooper has no tranny dipstick, you need to check it from under the car. on the tranny pan are two drain plugs. one to drain, one to fill. you need to pump the fluid into the fill plug hole. this is best done at a shop that has a pump . fill it up until the fluid runs out the fill hole. quickly replace the plug. do this on a level surface.
The Isuzu has a sealed transmission. It has a transmission fill plug on the side of the transmission above the pan, I believe on the right side of the trans case about midway the case body. Take the pan off remove and change filter. Add fluid by using an inexpensive pump until the fluid starts to run out the fill plug hole. Replace the plug. Job done.
1992 - 2002 Isuzu Troopers have the GM 4L30E transmission. There is no dipstick. There is no fill tube. The only way to add fluid or check the fluid level of the transmission is through the fill plug in the transmission pan. The transmission fill plug is situated above the fluid level of the "sump" area of the pan. Add fluid by pumping it into the fill plug and let any excess drain out. You'll know it's topped off when the fluid stops pouring out.
To change the transmission fluid, jack up your SUV to have enough room to get under the vehicle comfortably and safely. Find the transmission and have a drain pan under it. Remove the drain plug and allow fluid to drain. Remove all of the bolts and lower the transmission pan. Remove the transmission filter and replace if needed.
on the engine
there is none, it uses the same one in front
On the 2002 Rodeo the transmission is sealed and is non servicable by the owner. You cannot even check the fluid level so I advise taking it to an Isuzu repair shop.
Mercon dexron
According to rockauto: HONDA PASSPORT EX (1994 - 2002) HONDA PASSPORT LX (1994 - 2002) ISUZU AMIGO (1998 - 2000) ISUZU AXIOM (2002 - 2004) ISUZU RODEO (1993 - 2004) ISUZU RODEO SPORT (2001 - 2003) ISUZU TROOPER (1998 - 2002) ISUZU TROOPER LS (1992 - 1997) ISUZU TROOPER LTD 1997 ISUZU TROOPER RS (1993 - 1995) ISUZU TROOPER S (1992 - 1997) ISUZU TROOPER SE 1996 ISUZU VEHICROSS (1999 - 2001) TOYOTA T100 (1993 - 1998) TOYOTA T100 DLX 1995 TOYOTA T100 DLX EXC 1995 TOYOTA T100 ONE-TON 1993 TOYOTA T100 ONE-TON DLX 1995 TOYOTA T100 SR5 (1993 - 1997)
I heard someone comment that it has a "sealed" transmission, therefore, a dealer has to add fluid. I own a 2002 Isuzu axiom. they don't have a dipstick but they do have a holding tank on the right side you check and add fluid there.
on the left side of the transmission is a sensor. carefully remove it and pump/squeeze fluid in that opening up to the bottom of the hole. replace sensor.
dextron or mercon III, you have to pump it in from the bottom.