Question about 1989 Isuzu Trooper
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Posted on Jan 02, 2017
1. Remove battery terminals and secure them away from the battery posts using nylon wire ties.
1a. Fine some comfortable eye glasses (clear or yellow) and keep them on. There are plenty of opportunities to get debris in your eyes during this procedure.
2. Spray "PB Blaster" (loosens bolts) on two bolts that secures alternator.
3. Jack-up vehicle on side to access alternator. Use a jackstand to support.
4. Using a 10mm open-ended wrench, loosen the bolt that swings the alternator. Screwing the bolt "in" or toward the engine will allow play to increase in the alternator belt. Loosen the 12mm bolt slightly next to the 10mm bolt (approximately 1.5" toward engine).
5. Continue to loosen 10mm bolt until there is enough slack in the belt to remove the belt from the alternator pulley.
6. Remove belt. It may be possible to remove belt without removing fan faring. Maybe not. If not, you will need to remove plastic fairing. If you must remove fair, go below fan fairing and disassemble connectors that hold together pieces of fan fairing. Carefully remove.
7. Install alternator fan from above.
8. Check that alternator belt is on all tracks (from below with a flashlight), and slowly tighten.
9. Secure 10mm and 12mm bolts. Recheck tightness.
10. Reassemble battery connection and run vehicle at idle for about 5 minutes. Check belt for proper tension.
11. CAREFULLY check tension of belt. Or disassemble battery connections and re-check belt tension.
12. Reassemble fan fairing (if not already assembled), re-connect battery terminals, and have a nice day. :-)
Posted on Jan 04, 2009
easy under the driver side need fuel tool from auto store. 30 min or srew driver push the clips in and pull. carefull lots of gas...
Posted on Jan 09, 2009
Their is a power and normal drive in trooper's power for pulling a trailer and normal for normal driving. The power drive only changes gear at higher R.P.M. Their is a switch on the plastic cover under the handbrake with p & n their is a light in the dash as well. If you are not aware of this switch then just needs switching over if you are aware of it then its probably the fuse to activate it or a wiring problem with it, Cheers
Posted on Sep 26, 2009
Testimonial: "I know the switch. But nothing changes when I switch back and forth. No light on the dashboard either. I don't know if it is in normal or power."
First their are two different front axles in 1996 troopers. Isuzu changed the 4wd system from auto lock hubs to drive control axle.auto lock hube are on the older trooper's with the light and wiper switches on the dash. The same way to change both. Auto hub remove the six hex. screws slide off the hub remove the sirclip from the driveshaft. Newer hub has 6 alan-head screw's again remove them then the hubcap then the sirclip on the shaft and slide off the round spacer. Next 4 bolts from the lower balljoint and the brake's. Pull out the hub until it clear's the shaft remove the inner boot clips slide the inner boot out the shaft. Clean the grease from the end of the axle then with your fingernail feel along any of the 3 tracks in the axle and near the outer end of the track you will find a wirelike split ring slide a screwdriver under the ring and lever it off . Pull out the drive clean off the grease. You will see a sirclip on the end of the joint remove it and slide off the joint. You can replace either boot from that end. The outer joint is held on with a snap ring on the shaft inside the joint and is not easily removed need a hammer and drift to drive off the end and when removed its hard to get the snap ring on the shaft back into its place.You can change both boots from this end as well. Cheers
Posted on Sep 28, 2009
When the car is completely cool,check the electric fan(s) for smooth rotation.
Clean/check/change the thermo sensor,contact and wire.
Excavate air pocket in coolant system / check for head gasket leak
This test will kill two birds with one stone.
MAKE SURE THE COOLANT SYSTEM and ENGINE IS COLD!
RAN THIS TEST IN A WELL VENTILATED AREA ONLY!
You will spill some coolant during this air pocket purge test.......BE KIND TO THE ENVIRONMENT and ANIMAL please clean up after the test!
Put the front end on a pair of ramp or park your car on a VERY STEEP HILL (radiator facing top of the hill) .
Top of the coolant reserve tank
Let it ran for 10-15 minutes.
Monitor for air pockets escaping from coolant reserve tank.
Small amount of bubbles is OK at 1-5 minute mark
After the thermostat open up (after 195 F warm up) at
5-12 minute mark or after high idle you should see less bubbles.
If you do not see any in rush of bubbles then your thermostat may be partially stuck or rusted badly inside the thermostat hosing.
Give the thermostat host few gentle taps.
If you see larger bubbles surfacing after 15 minutes then should do a hydrocarbon (HC) dye test to test for potential head gasket leak.
Let engine cold down and top off coolant reserve tank.
Start monitor for coolant lost
A coolant flush is require every 2 years or 24,000 miles.
I recommend the thermostat that has a relief pop-let to reduce the change of burst radiator and coolant hoses.
Make sure you get a new thermostat gasket,black RTV and fresh coolant for the job.
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Posted on Dec 05, 2009
Testimonial: "thanks it actually stopped overheating on its own after letting it set for 3 months"
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