Overheating at High Speed (revs) and uphill

[Aninoninoni]

Honda Civic LXi 1996 (stock)
Went to baguio last July 2009 jampacked ang auto ko with 4 passengers and luggage at compartment, nag start magover heat mid way up marcos highway. Nung pauwi din uminit kahit madaling araw kami umalis. pero before that wala naman overheating. Nag change oil lang, nawala yung over heating. Question: sa lumang auto ba regular oil na lang ang dapat bang gamitin? and, may relation ba ang di pag change oil sa overheating. nakakaka 5000k na ako since my last oil change, last week hinataw ko sa skyway 140kmph nagsimula na naman uminit (a little more than 3/4 the gauge) pero pag trafik, bumabalik sa normal.... confusing!!!! di nababawasan ng tubig sa radiator, tumatakbo mga fan, walang tagas water pump. Possible causes? Salamat.

[meledson]

Honda Civic LXi 1996 (stock)
Went to baguio last July 2009 jampacked ang auto ko with 4 passengers and luggage at compartment, nag start magover heat mid way up marcos highway. Nung pauwi din uminit kahit madaling araw kami umalis. pero before that wala naman overheating. Nag change oil lang, nawala yung over heating. Question: sa lumang auto ba regular oil na lang ang dapat bang gamitin? and, may relation ba ang di pag change oil sa overheating. nakakaka 5000k na ako since my last oil change, last week hinataw ko sa skyway 140kmph nagsimula na naman uminit (a little more than 3/4 the gauge) pero pag trafik, bumabalik sa normal.... confusing!!!! di nababawasan ng tubig sa radiator, tumatakbo mga fan, walang tagas water pump. Possible causes? Salamat.

Possible na hindi na efficient ang cooling system.

Possible na mahina ang water pump o barado ang radiator o ang iba pang daluyan ng tubig.

Kung gagamit ka ng coolant pero originally, pure tubig lang ang gamit, baka lalong magbara.

Ok pa rin ba ang mga hoses mo? baka sobrang lambot na.

Bago mag summer, ipa check mo na.

[tanatej]

Check mo uli aux fan lalo na kung naka automatic at thermostat.

[miked]

1. automatic tranny ka ba boss o manual? nabanggit mo bumababa sa normal pag traffic, therefore gumagana pa clutch fan. kasi kung mabilis na sasakyan ung convection na ng hangin ang gumagawa ng heat exchange at free wheeling na lang ung fan. saka ulit gagana yung fan pagdating sa stop and go traffic o kaya e slow speeds.
2. with regards to my question sa tranny, if ever automatic tranny lalu na kung internal cooler ang tranny e ipalinis mo radiator at change atf. if manual, subukan ipalinis ang radiator.
3. pwede ring pudpod ang water pump kahit walang leaks gaya ng nabanggit mo.
eto muna ha.

[beetlebmble]

hi to all, my first post as a new member here-
Similar po experience with my sentra ss97 AT- revving at speed

history po ng car
2006 - water pump broke running for 3 days w/o water sa radiator _almost_30km rn tinakbo, gamit kasi ng sister hehehe-

nagpalit lng , ok na uli running with normal temp even kahit long distance

Oct 2009 - sister drives from fairview all the way to our house with busted heater hose assembly from engine _ yung hose kinain na rn ng corrossion ng assembly. She drove then shuts down the engine if malapit na mag 3/4 ang temp. Fix the assembly and it's ok again.

Jan 2010 ok naman performance (no overheating)but with some power loss and short shifting na ang transmission, upshift cya agad if kahit na revving hard unlike before
so I adjusted na idling speed , dati naka 700 rpm A/C off, manual says 800
rpm so set to that speed was my first sol'n. Now its temp goes up to above 1/2 if revving then ok na uli pag cruising 80 kph. Seems me tama na head gasket from what the posts about overheating say or somewhere else cooling system. it's ok if set to 700 rpm uli pero mahina pickup compared ng Hindi nagkaproblem. some advice po, top overhaul ? no leaks , me tama konti ang rad cap (even before the problem)pero minimal loss of water if driving
with high temp.

[beetlebmble]

I hope head gasket is still ok yet I will resort to top overhaul before getting a cracked aluminum head. maybe sa engine troubleshooting dpat Ito ipost hehehe , dami na rin kalawang cgru ( I was not able to drain coolant from the engine block) nito because last time change coolant April 2009 , 30/70 ang ratio ng rust to water/coolant pipit pati mga radiator hoses me lagitnit na. I noticed also that after a Long drive more than 60 km, I will adjust again idling speed for nag aadjust ata Ecu to lower performance to reduce possible engine failure.

[blacksharkfin]

same prob b4 with my galant gti... pina overhaul ko ung radiator..., after that oki na. ni reset ko lang comp box by removing cables fo 30 min. (just to be sure) then put back. "nai prog n ung overheat prob kc kaya ilaw ng ilaw ung check engine". but after all that, oki na.

[beetlebmble]

by now referred the problem to the mechanic, dami na raw kalawang, he said iflush muna radiator or palinis todo.
OVERHEATING is caused by clogging of the radiator. inefficient na thermal transfer so complete flushing dapat. engine is still filled with rust reflush uli after one week. I'll do it for 4 consecutive weeks using distiller/purified water mix. If problem persists, radiator overhaul, then .. sana ala pa tama head gasket considering the corrosion and overheating.

*blacksharkfin
nice car, nice engine

[a3n3as]

by now referred the problem to the mechanic, dami na raw kalawang, he said iflush muna radiator or palinis todo.
OVERHEATING is caused by clogging of the radiator. inefficient na thermal transfer so complete flushing dapat. engine is still filled with rust reflush uli after one week. I'll do it for 4 consecutive weeks using distiller/purified water mix. If problem persists, radiator overhaul, then .. sana ala pa tama head gasket considering the corrosion and overheating.

*blacksharkfin
nice car, nice engine

i think mas ok kung radiator overhaul na kaagad kaysa gagastos ka pa sa coolant/water for 4 consecutive weeks.

[beetlebmble]

thanks for the advice, distilled water , no coolant, para dissolved lhat ng rust sa engine and radiator , copper tubes naman ata ang radiator so no problem, I worry about sa ibang water fittings sa engine bka me sacrificial anode pa na bibigay (zinc material). This design of the engine I thought it will last as long as properly maintained pero me weak points rn talaga.

the car is 97k odo first owned, rarely used FC is a bit high ,low of 9 km/ltr, extreme traffic 7 km/ltr, nasanay kasi ng 12 km/ltr sa diesel

[brellrain]

When's the last time you had your AC cleaned? Na-experience ko din yan dati pero sa ibang car.. High revs and uphills, pero on normal roads, normal siya.. Nawala after I had my AC cleaned, nag hihigh pressure kasi..

[shakatak70]

Kailangan na mag flush ng radiator baka barado na.

[phezthie]

When's the last time you had your AC cleaned? Na-experience ko din yan dati pero sa ibang car.. High revs and uphills, pero on normal roads, normal siya.. Nawala after I had my AC cleaned, nag hihigh pressure kasi..

gd day to all, sori kung buhayin ko muna yung thread, same problem din kc sa aking accord exi a/t. overheat pag long drive pero pag city or traffic, ok temp. na replace ko na yung rad ng surplus, pati fans, cap, flushed and filled new coolant with distilled water, etc. na check ko na din yung iba and it seems ok naman...

if possible, please explain fully how to determine the symptoms of busted/defective pump as well as thermostat...

likewise, na curious ako sa issue ng A/C as quoted above, bka pwede paki explain na din kung pano sya nakakapagpa overheat sa engine... many thanks in advance... regards

[phezthie]

anyone, plz...

[brellrain]

It's possible that your radiator just behind the AC's condenser is clogged, so i suggested to have your AC cleaned.. That way, they will remove the condenser and spray your radiator with high pressure water..

[phezthie]

It's possible that your radiator just behind the AC's condenser is clogged, so i suggested to have your AC cleaned.. That way, they will remove the condenser and spray your radiator with high pressure water..

already did sir, ganon parin. ska nagpalit na ako ng rad na surplus...

[albert1911]

Also have the same dilemna for a week now. nung una, at high speed and uphill lang sya tumataas ng temp, abot hangang 3/4 sa gauge . pero kinabukasan, napansin ko na pati mabagal na takbo tumataas na rin ung temp.
I already had my radiator overhauled, fan motor, thermostat, thermo switch and temperature sending unit replaced pero ganun pa rin. ano kaya possible cause nito? ok naman daw ung head gasket sabi kasi di naman daw naghahalo ung langis at tubig. hay, sakit sa ulo

[phezthie]

Also have the same dilemna for a week now. nung una, at high speed and uphill lang sya tumataas ng temp, abot hangang 3/4 sa gauge . pero kinabukasan, napansin ko na pati mabagal na takbo tumataas na rin ung temp.
I already had my radiator overhauled, fan motor, thermostat, thermo switch and temperature sending unit replaced pero ganun pa rin. ano kaya possible cause nito? ok naman daw ung head gasket sabi kasi di naman daw naghahalo ung langis at tubig. hay, sakit sa ulo

same tayo ng problem. try ko to remove thermostat sakin today, update kita if it make sense...

[a3n3as]

baka waterpump hindi na umiikot ng maayos

[phezthie]

i installed new thermostat today and guess what, this is my unlucky day...

the symptoms for HG or cylinder head problem became more apparent, bubbles coming out of the radiator and smell of burned gas...

guys, any idea how much i need to prepare?

likewise, any recommended shop preferably in bulacan area with quality work at reasonable price will be highly appreciated... many thnks in advance..