Question about 1998 Isuzu Rodeo

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1998 Isuzu Rodeo Temp gauge is normal and then it went to hot and then back to normal. Did this several times. Checked and the engine was not overheating. Had the thermastat changed.The same thing is happening.I was told they had a hard time trying to get all the air out of the system keep getting bubbles. The anti freeze is clean. Any help ?

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Try starting engine when cold and rad cap, and/or coolant return cap off, and turn heater on. Let engine run and add coolant as necessary to rad as /if level goes down, and allow engine to reach normal operating temperature, and wait for the rad fan to come on, 2 or 3 times. Give engine a slight rev for 5 seconds or so, every once in a while while doing this, just to increase flow and help expel air better. Keep an eye on coolant level while doing it, and add as necessary, then put cap(s) back on, fill bottle to proper level, and try that. If that doesn't work, I'd question if air hole in thermostat was positioned properly when new one was installed, if you have a V-6 engine.

Posted on Nov 08, 2010

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My sincere apologies for the severly delayed response.
I am personally going back to answer your unanswered questions. I have only been on this site for the past 4-months as a free contributor.

I do not know if you still need this information, however I am answering it in case you still do.

Click on the following direct Link. It has several Diagrams for your 1998 Isuzu RodeoTiming Belt. Included are step-by-step reagrding how to tighten it. There are also Photo's.

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Again my apologies...
Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

http://www.2carpros.com/car_repair_information/year/1998/make/isuzu/model/rodeo/1998_isuzu_rodeo_timing_belt_diagram_marks.htm

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