Temp gauge going up and down

[brellrain]

Guys, need your help, I have a 2007 Ford Everest 3.0 4x4 AT.. I started noticing my temp gauge going up a couple of months ago, but only when I drive aggressively.. On normal drives, city traffic(stop and go), and on provincial roads.. Normal naman siya, pero sa uphills which requires more RPM(around 2500), tumataas nanaman siya, pero pag binabaan mo RPM say about 2000 rpm, bumabalik siya sa normal.. I checked my coolant levels and their all normal.. Wala naman leaks, lagi din full sa radiator, ok din yung coolant reservoir ko.. I tested if my radiator is clogged by opening the radiator cap, turned the engine on then rev it, it goes up and down naman, medyo nagooverflow lang when you rev it but as soon as you release the pedal, the water goes down again.. My AC is ok naman, malamig naman siya..

Any suggestions? Anyone know a shop who's an expert on these kind of things somewhere in Banawe QC area? Takot ako sa mga freelancers eh..

[dest]

Sir Pacheck niyo yong cooling Fan clutch, baka sira na yon.

[aejhayl17]

try mu din thermo reader sir, may not reading accurate measurement.

or yung auxiliary fan ba yun?

magkaka konekta yan eh. if the thermo gauge does not read accurate temps, the fan will not start. or if the fan is not working, the gauge is reading faulty measurements.

pacheck mu na lang sa casa sir, baka cover pa ng warranty yan

[speed unlimited]

Check mo rin iyong temperature gauge baka hindi na accurate ang reading . Siguro kung hindi naman nag ooverheat ayos lang siguro iyan .Check mo rin auxillary fan mo kung gumagana.Minsan gumagana pero mahina na ikot nito dahil sa motor nito.

[brellrain]

Sir Pacheck niyo yong cooling Fan clutch, baka sira na yon.

Sir, already replaced my clutch fan not too long ago..

[brellrain]

try mu din thermo reader sir, may not reading accurate measurement.

or yung auxiliary fan ba yun?

magkaka konekta yan eh. if the thermo gauge does not read accurate temps, the fan will not start. or if the fan is not working, the gauge is reading faulty measurements.

pacheck mu na lang sa casa sir, baka cover pa ng warranty yan

Sir wala naman aux fan ang engine ko.. This is what my engine looks like..

[brellrain]

Check mo rin iyong temperature gauge baka hindi na accurate ang reading . Siguro kung hindi naman nag ooverheat ayos lang siguro iyan .Check mo rin auxillary fan mo kung gumagana.Minsan gumagana pero mahina na ikot nito dahil sa motor nito.

Well so far hindi pa naman nag ooverheat, kasi pag nakita ko ng tumataas yung temp gauge, lay low na agad ako sa driving.. Weird lang kasi at normal roads hindi naman siya tumataas, even sa city traffic(stop and go) hindi din naman tumataas.. Pag uphill or aggressive driving lang talaga..

[dest]

Well so far hindi pa naman nag ooverheat, kasi pag nakita ko ng tumataas yung temp gauge, lay low na agad ako sa driving.. Weird lang kasi at normal roads hindi naman siya tumataas, even sa city traffic(stop and go) hindi din naman tumataas.. Pag uphill or aggressive driving lang talaga..

Sir ganyan yong LC100 series namin dito sa company. Nagpalit lang kami ng clutch fan. Try niyong umaandar yong engine niyo na nakaIdle lang. tapos pakiramdaman niyo sa kamay ang hangin pahigop (pabuga) papunta sa makina. Tapos paapakan niyo ang accelarator pedal hangang 1500RPM kung gaano kalakas yong buga ng hangin. kapag kunti pinagbago, talagang Clutch fan na ang deperensiya.

[brellrain]

Thanks sir, if ever, mukhang sira na agad yung clutch fan ko, original pa naman din yun.. Siguro wala pang 8 months nung nagpalit ako..

[dest]

Thanks sir, if ever, mukhang sira na agad yung clutch fan ko, original pa naman din yun.. Siguro wala pang 8 months nung nagpalit ako..

Sir Musta na yong Everest niyo. OK na ba? Pag di OK Subukan niyong pumunta first week ng October sa Shop na ito? Hanapin niyo na lang si Fermin.

Fermin Auto Aircon Electrical and Radiator Repair Shop

[speed unlimited]

Try mo rin na lagyan ng water coolant radiator mo baka makatulong para bumaba ang temperature ng engine mo. Kung wala pang nakalagay.

[brellrain]

Sir Musta na yong Everest niyo. OK na ba? Pag di OK Subukan niyong pumunta first week ng October sa Shop na ito? Hanapin niyo na lang si Fermin.

Fermin Auto Aircon Electrical and Radiator Repair Shop

Was able to trace the problem.. Dirty radiator.. Its ok now..

[brellrain]

Try mo rin na lagyan ng water coolant radiator mo baka makatulong para bumaba ang temperature ng engine mo. Kung wala pang nakalagay.

I did use 50:50 distilled water and coolant.. Siguro madumi na din, weird nga lang kasi around 10,000 kms pa lang tinakbo ng everest ko since I last changed.. What i did now is drain the collant/water, flushed it with a hose for around 5 mins, then poured Wilkins then added Red Line Water Wetter, no longer used any coolant.. Just one bottle of this water wetter is what I did.. Also added an aux fan.. Naging ok naman na..

[bambino]

kailangan ma inspect na ng tech yan para malaman kung normal ang pagtaas or something's wrong with the vehicle.

[v6dreamer]

I did use 50:50 distilled water and coolant.. Siguro madumi na din, weird nga lang kasi around 10,000 kms pa lang tinakbo ng everest ko since I last changed.. What i did now is drain the collant/water, flushed it with a hose for around 5 mins, then poured Wilkins then added Red Line Water Wetter, no longer used any coolant.. Just one bottle of this water wetter is what I did.. Also added an aux fan.. Naging ok naman na..

Friendly advice:
Coolant still your best cooling protection. Of course coolant are not silver bullet but its been using the car manufacturer since then. If you start using that product, youve better start searching the net if that is scientifically accepted in the automotive industry(not what that company said). You'll probably putting more risk your engine than good. Like Bambino said have some body inspect your cooling system. Also keep in mind that coolant mix only with destilled water not TAP water. Pre-mixed coolant is your best bet.

Let me add this also.. Your engine is designed to operate within a specified temperature range. If it doesn't get hot enough, the fuel injection system doesn't work right. If it gets too hot, then engine damage occurs. What keeps your engine in the right temperature range? The thermostats. They constantly open and close to moderate the coolant temperature, and when they wear out the engine temperature starts to fluctuate too much.

This is only a friendly advice, but still the decision is yours.

[brellrain]

Thanks for the advise sir, but there's nothing wrong with my cooling system.. As of now, my temp gauge no longer goes up even when I rev the engine up to 3000 RPM.. Also, someone told me that if your going to travel long distances, don't put the thermostat in the Max setting, make it 3/4s or even 1/2 so the compressor can get some rest.. I never used tap water ever since.. Only wilkins or absolute whichever is available at the time..