Question about 1999 Isuzu Rodeo

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I replaced water pump, thermostat and radiator. My heat works fine, but the car still seems to be running hot. There is steam coming from the container that says "coolant only" any ideas why?

Posted by Anonymous on

4 Answers

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  • Isuzu Master
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Could be air trapped in the system...do you see a bleeder valve on the thermostat housing? If no bleeder, try burping your system by sqeezing the upper radiator hose with cap off...yes, cap can cause this...any variation in fluid level running and after running?

Posted on Apr 11, 2015

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  • Isuzu Master
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CHECK THE CAP AND THE FAN CLUTCH. DO A COMPRESSION TEST. COULD BE A FAULTY RADIATOR CAP ALLOWING A LOSS OF PRESSURE. IT IS SO CHEAP WHY NOT REPLACE IT ANYHOW

Posted on Apr 09, 2015

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  • Isuzu Master
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O would have a mechanic look at the compression you may have a head gasket failing

Posted on Apr 09, 2015

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  • Contributor
  • 34 Answers

If you say there is steam coming from the "coolant only" overflow reservoir, then the first thing I'd inspect is the integrity of this overflow coolant tank. if you believe the cap is in working condition, take a careful look at the tank itself. so as to rule out any cracks or deformities which may compromise this parts ability to build and retain the necessary pressure for the cooling system to operate in the manner for which it was designed. hope this helps!

Posted on Apr 09, 2015

  • David Wichers Apr 09, 2015

    meant to advise you to test the coolant overflow reservoir cap for proper operation. realized it might be worth noting in comments so it wasn't overlooked due to my poor choice of words! good luck!

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Posted on Jan 02, 2017

Landyman
  • 89 Answers

SOURCE: Coolant still leaking from my 1996 Isuzu Rodeo.

There is a plastic heater pipe junction behind the inlet manifold against the fire wall that could be brittle and leaking.

Posted on Nov 16, 2008

  • 1118 Answers

SOURCE: blown head gasket. what is the cause

Running hot will cause head gasget to fail. Or if head is not torqued properly, or a faulty head gasget. Pressure in cooling system means, blown head gasget or cracked head.

Posted on Mar 05, 2009

Molson02536
  • 3854 Answers

SOURCE: We replaced the water pump and radiator - leaking coolant

It could be leaking thought the gasket or radiator hose. Remove the water pump and replace the gasket, inspect the water pump first to make sure it's not leaking through the radiator hose and weep holes, if it is leaking through the weep hole then replace the water pump again since the water pump is faulty. good luck and keep me posted. 

Posted on Jun 29, 2009

roniecon
  • 6826 Answers

SOURCE: 95 trooper overheats but replaced thermostat,radiator,cap,hoses.

make sure ur fan clutch is puling some air and replace rad cap with new onr u may have to replace radiator long trips not getting enough water cooled

Posted on Jun 30, 2009

  • 14 Answers

SOURCE: 2001 Isuzu Rodeo 4 cyl 2.2L 2WD that is overheating

check the electric fan conector plug some times is rusti scratchet whit a sharp scruwdriver remove the rusti or dirt on it this happens many times and step two check the relay and thats it (this is the first step a mecanic to search)

Posted on Feb 07, 2010

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