Bottom hose sucking in :(
ook so now i have broken down for the last 5 days, i have been told that i needed to replace my fuel pump, and air flow sensor.. so i did, then i got my aircon re gased and changed the crank angle sensor, i get my car home and it dies in drive, not over heaten, just dies... now some how some way i have a problem the cooling system, i have fllushed my radiator 6 or more times, i have bought a new thermo stad, i have scrubbed my over flow bottle to remove all gunk, i have bougght new hoses, and bleed it completly, today i got a new radiator, and still tonight my bottom hose is sucking in when the excelaration is getting used... then overheatingi dont understand i am lost with this car ... i have replaced everthing and it is still doing it ..please has any one got any ideas, the water pump is flowing thru top hose but for some reason there is now flow at all to boottom hose...
vs calais..., supercharged v6 1997 caprice motor
was there a cap on the bottom hose connector that you may not have removed?
Disconnect the bottom hose amd check for water flowing out the bottom of the radiator.
Was the radiator new or second-hand? Possibly blocked.
its definitly not blocked i have flushed the radiator and motor heaps of times, the water waws running thru clear.... to the thermostad it was blockedwith no flow cuming thru tht hose so i took off thermo stad and the water seemed to be flowing ok. yes radiator brand new..... im clueless.... ass to that cap? i dont think there is even a cap? where is tht
most bottom radiator hoses come with a coil of wire in them (looks like a spring) to stop them collapsing when the water pump sucks at high RPM. Obviously yours doesn't have this...
Maybe it fell out at the shop that you bought it off. Check with them.
You can test this by squeezing it with your hand - it should feel stiff.
yeah it did at the time of purchase, and once fitted in car, but as soon as this problem accusred it is now floppy as, and sucking in
the funniest thing bout it is, today when i replaced everything over again. it seemed fine on start up... oncei turned on my heater/aircon i noticed the suction starting all over aagain after i just fixed it all
take it back off and check where it's gone. I imagine that is your problem. That is the whole reason the spring is there!
hm i will give it a shot thanks
funny enough it does get its pressue bak tho.... but as soon as u excelerate it gos floppy again so i will check this hose asap. and let u know thankyou
Both of my radiator hoses were sucking in flat. Bought new ones, they did the same. Turned out to be the radiator cap. Bought a new one, all good now.
HTH
ok today i have gone back to peps, and bought 2 new hoses, i have been informed tht with the 97 supercharger vs caprice motor, these radiator hoses dont have spings in them.... the spring is inside it...now i have replaced the radiator cap today, both hoses :'( flushed the whole block, including the the heater line , there is no thermostad in it at all, and flushed that radiator in so many different ways it is not funny. the water is clear from each end it is getting flushed on... i dont understand
ah i just dont know what more to do
Mate, I would do a compression test on the engine, bubbles in the radiator can mean its got a leaking or blown head gasket. You dont always get water mixed with oil when a head gasket blows.
Also get the cooling system pressure tested. Have you replaced the thermostat, it should slow down and almost stop the flow of coolant until the engine is hot enough to let it open. Even when fully opened the thermostat would slow down the circulation of the coolant. I'm thinking that if theres not one in it, the pump might pump to fast for the flow to keep up, Hence the sucked in hose.
what issues will this be showing me if it is a leaking/ blowen head gasket? tht motor has been recondiontioned to the max, and has only done 143 thousand k's.. its been serviced fully every 5 thousand?
It could be hardly even noticeable or it could be running terrible.The only way to make sure is to test it.But I dont see how a head gasket would make the hose suck in,Usually it will just pressurise the system and push the coolant out the overflow.It has got me stuffed what it could be.There has to be a reason for it.The bubbles in the radiator point to a blown head gasket or cracked head/block. Also it can blow steam or white smoke from the exhaust,which is another telltale sign.
Last edited by Brett_jjj; 26-11-2009 at 02:53 AM.
GRA = REAL HP
describe how you are bleeding the cooling system ???
yeah i might text it tomrow... there is no white stuff under oil cap, and no water going anywhere elese, it is just not flowing tht water thru tht bottom hose, but wen it is all disconected it flows like a dream, and its not blocked coz i havve unblocked it a million times as well.. so maybe it is a gasket u think... my oil still looks golden.
there r 2 screws and they r getting unscrewed with heater running on hot, one at a time, wen the flow in one screw is realising presureised flow of the coolant thAT screw gets screwed up and same as follows with oppisite screw
it is slowly realising collant and getting unscrewed untill the presure flow is high, then screwed baqck up
When a head gasket blows,it doesnt always get coolant mixed with the oil.It can blow out into the water jackets around the bore and the compression comes out through the radiator,the bubbles you can see.
GRA = REAL HP
wrong way . trying raising the water level above the bleeder screws with a funnel or hose then open the bleeder screws lowest one first then the higher one . all the time keeping the water level higher in the funnel engine off . hot or cold makes little difference heater tap open or closed , give that a try and see what happens next
hmm u havee lost me there lol. around the bore? how do i see that .. i am a chick but i understand a lot with cars, but as to that bore water jackets u lost me .... can u expain more on it sorry
Ive flushed my radiator heaps of times and never had trouble bleeding the radiator.Fill it up,start the engine,fast idle it,and loosen the bleed screw until you get a constant flow of coolant.Then once its up to operating temp loosen the bleed screw again,just to make sure its all out.Heater on hot as well while you do this.
ok in saying that can you explain to me step to step,, sorryOriginally Posted by strgas
this is exactly how i do it, and got explained how to do it
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