Question about 1998 Isuzu Rodeo

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1998 Isuzu rodeo running hot. filled radiator & reservoir with water & coolant. There is a oily substance dripping from small hose at the bottom of radiator, dont see any water leaking. Just had water pump replaced 3 weeks ago.

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  • Isuzu Master
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Running hot.
do post all sighs of that. there are many,
is Rad full dead cold, with rad cap off? look there?
1: guage reads too high.
2: steam?
3: water blasting to side plastic side expansion tank.
4: engine pings.
5: loss of power,
6: water leaks.
7: water found at rugs of passengers toes. (below cab core)
8: that oil is tranny cooler leaking or something else.
9: oil found in top of rad cap hole floating on the water.
10: water found in engine, pan (on dipstick looks like milk chocolate)
11: water in transmission , same test, different stick.
12: running 50% antifreeze or just water.....?? latter dead wrong.
we test the % each each fall with a $2 tool.
13: did you let the engine sit out in sub freezing levels with no 50% AF?
14: are the fan belts tight.
15: did you replace the RAD cap.,
16: try a new thermostat? both cap and stat are easy cheap fixes.
17: do a RAD pressure leak down test yet?
18: is rad fan working
19: is rad core outside packed in junk,.
20: is A/c core (condensor) same, packed in junk.?
21: question, does it over heat moving or only parked or both?

and more, im tired

Posted on Mar 05, 2016

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  • Master
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Replace small hose and clamp, that hose come's from your transmission, goes through another tank in the radiator, to keep the transmission fluid cool, hope this was very helpful.

Posted on Aug 26, 2010

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6ya6ya
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Posted on Jan 02, 2017

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What makes car run hot, and leaks water from top of motor around the belts.


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No vehicle requires any additives for any reason

If coolant is leaving, it has to go somewhere,like
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Do a combustion gas test & cylinder leak down test,
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Oct 07, 2011 | 2004 Ford Taurus

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My rodeo started shooting steam out i filled it with coolant and during my 1 mile trip home water was pouring out from underneath,i poped hood,cap was on but steam was coming from below engine,help


Hi there,

Hopefully there is a hole in one of the hoses (least expensive).

No matter what, you need to find the source of the leak. A flashlight will be useful.

When the engine is cool, pour water in the radiator. You shouldn't need to run the engine.

When it starts dripping, look for the leak on:
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  • Large hoses leading to and from the radiator
  • Heater hoses (smaller leading to firewall)
  • Water pump (on the engine)
Once you find it, the severity and type of problem will dictated whether to fix or replace the damaged part.

Mike

Mar 24, 2011 | 1996 Isuzu Rodeo

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My rodeo is running hot. It is not steaming or bubbling over and the fan has been replaced would my next option be to replace the thermostat.


Or put more engine coolant/water into it. you might need to put some directly into the radiator. The fan isn't the major cooling agent in the engine, the water/coolant is. Just make sure you don't over fill or under fill the tank holding the extra coolant, the radiator should be full though.

hope it helps.

Aug 21, 2010 | 2000 Isuzu Rodeo

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Have new radiator, water pump hoses, belts; system has been bled; experimented with bypassing the heater core; thermostat removed...car still overheats. Also, coolant goes to the overflow bottle, but often...


The reservoir,and,or,the tubing from the radiator,to the reservoir may have a pin hole in it,or the tubing is sucking together.Replace the tubing,and the radiator cap,and the reservoir top.See if it will work correctly.Fill reservoir,and radiator,and let it run until the cooling fans cut on,then cut the engine off.Wait about 25 minutes,and see if the reservoir will drop in level,if so,repeat this process until the vehicles cooling system is normal.Make sure the cooling fans are coming on,and going off,with the ac off.If the cooling fans are coming on,then that is good,but,they must go off by them selves,or the cooling system is not cooling down.

Nov 24, 2009 | 1997 Isuzu Rodeo

3 Answers

Isuzu rodeo leaking coolant from engine


with my experiance on these engines it's usually the upper outlet hoses running from the heads into a t then into the upper radiator hose they are pain to replace but 3 out of 3 of my v6 isuzu's have had the same problem you'll have to pull off the theromstat and the coil pack the hoses are very small and run from the end of the heads one on each into a t then into the radiator hose just under the housing

Apr 27, 2009 | Isuzu Rodeo Cars & Trucks

1 Answer

I need to know what the part is called and how to fix it. The part is leaking hot coolant fluid, it is a ''y'' shape tubing that feels like hard plastic, black in color. It runs on the left side to the...


sounds like hoses going to heater core but they are rubber usually. But it could be the hoses for the degs bottle mounted on the passenger side inner fender.

Coolant Recovery System NOTE: When the water thermostat (8575) is closed, coolant flows through the degas tube and hose assembly from the lower intake manifold to the radiator coolant recovery reservoir (8A080) .

Trapped air in the cooling system must be removed. A pressurized radiant coolant recovery reservoir system is used which continuously separates the air from the cooling system.
  • When the water thermostat is open, coolant flows through both the small hose from the top of the radiator outlet tank and the degas tube and hose assembly from the engine to the radiator coolant recovery reservoir.
  • The radiator coolant recovery reservoir separates any trapped air from the coolant and replenishes the system through its radiator coolant recovery hose.
  • The radiator coolant recovery reservoir serves as the location for:
    • service fill.
    • coolant expansion during warm-up.
    • system pressurization from the pressure relief cap.
    • air separation during operation.
  • The radiator coolant recovery reservoir is designed to have approximately 0.5-1 liter (0.53-1.06 quarts) of air when cold to allow for coolant expansion

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