why is the coolant not circulating

240

Asked by Jul 26, 2014 at 12:08 PM about the 1998 Chevrolet Cavalier RS Coupe

Question type: Maintenance & Repair

flushed radiator, by-passed heater core, new water pump, took out thermostat, fan comes
on but, the coolant isnt circulating. coolant leaks occasionally.

26 Answers

58,375

Radiator stopped up,or you still have a new water pump that is not working right.

6 out of 6 people think this is helpful.
101,415

Also inspect your hoses. They could be internally collapsed.

3 out of 3 people think this is helpful.
240

i ran the water hose thru the upper and lower hoses and water ran freely

3 out of 3 people think this is helpful.
142,975

T_S_T has a good point..I have bought a water pump that was bad out of box....but is it getting hot? And to by-pass heater core did you just splice the two hoses together after pulling them from firewall?

5 out of 5 people think this is helpful.
240

yes, i did just splice the heater core hoses together. Is that all bad?

2 out of 2 people think this is helpful.
240

and yes, it is getting hot!

2 out of 2 people think this is helpful.
101,415

Oh ok. But have seen hoses collapse after warming up. I would Check them when engine is warmed up. You should be able to feel if they are collapsed or not under pressure. Use caution tho they will be hot. Sorry but have to ask is your water pump belt routed correctly? Also are you positive that you got all the air out of the cooling system after replacing water pump? An air pocket can cause this also.

3 out of 3 people think this is helpful.
142,975

No, nothing wrong with that. Pondering...but still, getting hot and where is leak?

5 out of 5 people think this is helpful.
240

i did not bleed the cooling system! forgot that had to be done! my bad! the leak is toward the rear. heater core hoses im guessing. you can also hear it boiling in the resivor from not circulating.

2 out of 2 people think this is helpful.
240

and the hoses are not under pressure. i can squeeze them easily.

1 out of 1 people think this is helpful.
101,415

Ok. Get all the air out of it and you should be fine. Locate and repair the leak.

3 out of 3 people think this is helpful.
58,375

If car was running hot before all the change,s,,just my thought,s,may be bad head or blowed gasket meaning intake or head,car has been ran hot,would not hurt to check this if all the above doe,s not fix it.

3 out of 3 people think this is helpful.
101,415

That is correct TST. Good call man. That might also explain the leak.

3 out of 3 people think this is helpful.
240

how do i bleed out the air? take off resivor cap until hot?

5 out of 5 people think this is helpful.
240

do i need a compression test for head and head gasket? is there a shade tree way to do it myself?

4 out of 4 people think this is helpful.
142,975

3rd opinion...same as those guys. Water jackets in block plugged?

4 out of 4 people think this is helpful.
101,415

If in USA most auto zones will loan (deposit required but you get your money back when you return it)you what you will need to check for blown head gasket.

3 out of 3 people think this is helpful.
142,975

See what you oil looks like...if chocolate brown=big problem

3 out of 3 people think this is helpful.
240

what are water jackets?

3 out of 3 people think this is helpful.
240

oil is fine

2 out of 2 people think this is helpful.
142,975

kalikush I'll have you know you have two of the best mechanics on this site working with you..me not so much but competent marginally

4 out of 4 people think this is helpful.
142,975

Water jackets are the small passages that are between the cylinders, in the block, right next to combustion chamber, first coolant to absorb heat

3 out of 3 people think this is helpful.
240

ok fellas gonna bleed the air out now. will keep you posted thanks for the help

101,415

www.youtube.com/watch?v=9P-hEJIBpy8 --- check out this video. Most info does not pertain to you but it will show you where the bleeder valve is for getting the air out of the system. Do this first before doing any other testing. IMO anyways.

3 out of 3 people think this is helpful.
101,415

Yours may not be exactly like the one in the video but it should give you a good idea what to look for on yours.

3 out of 3 people think this is helpful.

You have a leak somewhere. Take it to the good guys @ Les Schwab to check it out for you. Problem is solved and it's prob not hard to fix. Or ask one of the guys at a local car supply store and they can direct you to a part--either you can put it on yourself or bring to Les Schwab to do it for you @ a discount:)

Your Answer

Add photo

Related Questions

Cavalier

Looking for a Used Cavalier in your area?

CarGurus has 1,386 nationwide Cavalier listings starting at $1,995.

ZIP:

Search Chevrolet Cavalier Questions

Chevrolet Cavalier Experts

#1 John Saffrahn
John Saffrahn
Reputation 2,700
#2 dandyoun
dandyoun
Reputation 1,240
#3 mbar1
mbar1
Reputation 1,060
View All

Related Models For Sale

Used Ford Focus
1,254 Great Deals out of 58,946 listings starting at $1,395
Used Honda Accord
1,200 Great Deals out of 78,037 listings starting at $969
Used Honda Civic
1,143 Great Deals out of 65,145 listings starting at $1,195
Used Chevrolet Malibu
1,116 Great Deals out of 79,186 listings starting at $2,495
Used Nissan Altima
1,129 Great Deals out of 85,763 listings starting at $695
Used Toyota Camry
1,482 Great Deals out of 100,777 listings starting at $700
Used Chevrolet S-10
10 Great Deals out of 1,626 listings starting at $2,450
Used Toyota Corolla
1,336 Great Deals out of 68,327 listings starting at $1,399
Used Chevrolet Camaro
660 Great Deals out of 39,301 listings starting at $2,995
Used Honda Civic Coupe
331 Great Deals out of 17,031 listings starting at $900
Used Pontiac Sunfire
466 listings starting at $1,700
Used Honda Odyssey
481 Great Deals out of 27,732 listings starting at $1,900

Used Cars For Sale

2002 Chevrolet Cavalier For Sale
216 listings starting at $2,495
2001 Chevrolet Cavalier For Sale
149 listings starting at $1,995