20 Most Recent
1999 Isuzu Trooper - Page 8 Questions & Answers
Steps in replacing serpentine belt
First Figure out why you are replacing the belt? Is it just cracked or glazed or did it shred itself?? If It is cracked or glazed and you decide to change it then purchase the new belt, look at how the old one is ran around all the pulleys. there should be a diagram under the hood somewhere. the next thing you will need to locate is the tensioner pulley. it pushes on the flat side of the belt to keep it tight there should be a bolt or a square cut out for a ratchet or breaker bar. you will need to wrap the belt around all the pulleys the same way the old one was. It should not be able to get around all of them this is where the tensioner comes into play you will have to "turn" it to allow the belt to get around the last pulley, i usually pick one at the top thats easy to reach then let the tensioner back against the new belt.
Check engine light on an isuzu trooper
have a 1999 3.0td trooper. Diesel fuel in coolant and overheating. Suspected problem with head so replaced with new head and gasket set. Timing appears correct.Fuel appears to be flowing. Engine will not start..turns over..no nasty noises...appears to have compression...any ideas please??
How do you remove the thermostat on a 1999 isuzu
CAUTION
If the radiator is filled to the
top with coolant and the engine is run without the radiator cap in
place, the coolant will expand and spill over as the engine warms up.
- Drain some coolant into a clean container until the coolant level is
below the thermostat housing.
- Remove the upper radiator hose connection from the thermostat
housing.
- Loosen the housing bolts and remove the housing.
- Remove the gasket and scrape it carefully from the surface of the
housing and the mounting surface on the engine. If the gasket remains on
either of the surfaces, there will probably bea coolant leak after
reassembly. Some engines use a rubber O-ring to seal a thermostat
housing.
- Compare the size of the thermostat to the old one. They are of
different sizes, types, and temperature ratings.
- The temperature rating is stamped on the sensing bulb on the bottom
of the thermostat. The temperature bulb faces the block.
- When replacing a thermostat, be sure that the thermostat fits into
the groove in the block or outlet housing. If the thermostat is
installed upside down, the engine will overheat.
- Install the gasket.
- Reinstall the thermostat housing. Refill the system and run the
engine or pressure test to check for leaks.
- When the engine has reached operating temperature make sure the
thermostat opens.
- You should be able to see coolant circulating within the radiator.
- Another way of checking thermostat operation is to feel the top of
the radiator hose or use a thermometer or multimeter with a temperature
probe to confirm that the coolant is warming up.
- If the engine is overheating, but the top hose is still cool to the
touch, the thermostat is stuck closed and must be replaced.
NOTE
When a paper gasket is used and the recess is in
the thermostat housing, it is a good practice to position the thermostat
into the recess and glue the gasket to hold it in place. If it falls
out of its groove during installation, the outlet housing can be cracked
or a coolant leak will result. Before tightening the water outlet
housing, try to rock it back and forth to be sure it is flush. Housings
are often cracked during this step.
Oxigen sensor
OK, so now I know that you have a 1999 Isuzu Trooper Equipped with a 3.5L V6 DFI DOHC engine, 4-wheel drive, four wheel disc brakes, four wheel antilock system, 108.70 in. wheel base, with a standard curb weight of 4465 lbs.WHAT ABOUT "oxygen sensor"???
Not finding what you are looking for?