Question about Cars & Trucks
First, need to check the cars thermostat, it may be that you need to change this to a lesser high side temp.instead of a 185* go with a 165* or similar one, secondly make sure the system is circulating properly and all cooling parts, (fans, belts, shrouds etc ) are working good.I am assuming that these speeds are highway numbers close to or near normal.. 100km/hr is 60mph so 110km/hr is around 65mph so at hiway speeds the system should be ok..unless theres a bad gasket somewhere, usually a head gasket because thats where the engine pressure is the greatest..an easy test is to take your radiator overflow hose lose at the reservoir and dunk the end in a cup of water with the engine running, look for consistent air bubbles in the water this translates to engine pressure entering the cooling area and forcing the coolant out, thus reducing the capability of the system to cool properly..thus it calls for an upper engine gasket replacement, and this is time consuming..it takes me a couple of days to do.good luck
Posted on Jan 13, 2013
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Posted on Jan 02, 2017
SOURCE: When I drive my Mazda
Does your Mazda have a standard trans (clutch), or automatic.
If it's automatic, the tranny might be slipping, and if it's a standard shift the clutch may be slipping. Does the actual driving speed (not engine rpm's) seem to stay the same when this happens? If you are still traveling at the same speed even though the engine speeds up, it's your tranny or clutch. I don't think the timing belt and tensioner have anything to do with this. countrycurt0
Posted on Aug 07, 2008
i think you have a combonation of problems here. most of it lead to needing a tune up .
just to get an understanding what is going on in your engine . i would bet to say that your enagine light is on . and probily an engine misfire code.
when the engine misfires somtimes it wil activate your knock sensor and ****** the timing thus raising your engine temp. if you havent flushed your coolant system yet you should. new plugs and wires and clean your throttle body.
Posted on Nov 02, 2008
if it is just a hose or tube that is easy to change, do it yourself to save you from spending a lot of money on install. you can pick the part up from auto zone, pepboys, napa etc.... if it looks to hard for you to do yourself, get the haynes manual for that year car, they sell that in those to, they have step by step instructions on how to repalce almost everything on the car, and where the locations are of other things that may need replacing also... that should help you out a lot... if you have any problem repost or email me and i will help you out... take care..
Posted on Jun 11, 2009
Why was radiator replaced?Did it have heat before ? If it was plugged, the heater core may also be plugged. Try flushing it with a water hose in both directions. I dont know why the botton radiator hose would be cold, the radiator should be a uniform temp and the air coming through the radiator should be HOT, when the engine is at operating temp. What condition was the old coolant? if it was rusty, the water pump may have lower flow than normal.
Posted on Nov 19, 2009
20/50 ,cheapest oil and change every 6000mile with oil filter every third oil change ,as for hold back ?=?could be anything under the bonnet causing this
Posted on Nov 20, 2009
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