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1994 honda delsol overheating

Runs cool when driving but temp gauge goes up when stopped. Just started this today. I did test the radiator fan and it works when jumped to the battery. So, what's next on the test it list?

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  • 14 Answers

Check your oil and see if your getting coolant in it.. if u take the oil fill cap off and look inside the valve cover.. if it looks like coffee u probably have a blown head gasket.. also check the coolant and see if it is low or looks like oil is getting into it... also if your coolant has ever got low/ leaked out..u may have a air pocket inside the engine.. but if i know my hondas like i think i do... chances are u got a blown head gasket... if u dont notice the coolant in the oil right away dont worry if u keep driving it with these symptoms u will soon enough...

Posted on Dec 06, 2012

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 78 Answers

SOURCE: 2004 honda civic overheats

You might have a sticking thermostat. If it's sticking shut, it won't open when needed and the engine will overheat. Even though the water in the radiator is not hot then, the water in the block of the engine is boiling.

After that overflow, the cooling system was underfilled, so when the thermostat finally did open, it had plenty of room to refill, which is what you saw when the water got "suddenly sucked in".

My recommendation is to replace the thermostat (and gasket), because as a point of diagnosis, it is a relatively cheap part but can have terribly inconvenient consequences when malfunctioning. If you're handy, get a Haynes or Chilton manual from the auto parts store and do it yourself.

Also, the radiator cap is not good to mess with when the engine is hot. Doing as you did by opening it while overheated upsets the balance between the coolant in the block and radiator. There's a small rubber hose from the top corner of the radiator to a plastic (probably translucent) overflow tank on one side of your engine compartment. Under normal circumstances, you should check the coolant level there, as it exists to keep the system in balance. Note that I said "normal" - which means anytime it hasn't overheated to the point of leaking out of the radiator cap or leaking elsewhere.

Posted on Jun 10, 2009

  • 491 Answers

SOURCE: 1994 Honda Civic LX\overheating within 2 mile drive

Remove and raise upper hose at thermostat end and remove lower rad hose.
Fill rad with a hose and watch for flow from bottom rad hose and/ or bottom rad hose connecton.......water should fall though rad easily.
Honda rads are cheap.....any restriction....replace rad.

Remove thermostat....fill thermostat housing with hose and watch for water flow at bottom rad hose.
Flush good.

Remove heater hoses.......flush back and forth until a good flow is present "With heater control set to hot" if no or poor flow....replace heater core.

Stop leak can plug everything.

Also.......not likely causing over heating....but ....at your mileage,if you do not know if the timing belt has been changed.....CHANGE IT NOW!
Water pump is optional at this mileage.

Posted on Aug 24, 2009

Testimonial: "thank you for the very clear, step by step instructions for diagnose and remedy"

  • 75 Answers

SOURCE: 1990 toyota corolla wagon 1.6 liter 5 spd. overheating

you've got a possible blockage in the head or block.

Posted on Oct 03, 2009

gordanddar
  • 477 Answers

SOURCE: 2004 nissaan xterra v6 3.3L

Well , I know $800 is a big bill , but think of it this way , you got a bunch of new stuff on the car. The timing belt replacement alone would cost someone almost $800 to have done by a mechanic , and if it broke and destroyed your engine how much would that have cost. It's always nice to solve the problem on the first try , but at least it is fixed now , and you won't have to worry about any of that other stuff for a long time.

Posted on Dec 15, 2010

acoates
  • 454 Answers

SOURCE: 1994 4Runner, 3.0 v6 overheating; new

Hello, jimmy_grant1 and thank you for asking your question on Fixya!

Here is a simple process that will walk you through a few steps that will pinpoint the overheating problem on your
1994 Toyota 4Runner, without even using any tools. It has helped millions of people, and I am certain that it will help you, because I wrote it for people in your exact situation.
How to diagnose an overheating
1994 Toyota 4Runner
Pay attention to the block test part of the instructions.

Get more tips and tricks from a professional about your vehicle from: twitter.com/acoates23234
Thanks for the vote, and good luck!

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Posted on Jan 13, 2011

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