89 civic over heating problems

bert89

New Member
5+ Year Member
ok so i changed all my anti freeze out the other day an i notice that it started to leak so i thought it was something lil like a hose or something messed up but there wasnt any hoses messed up wen i jacked the car up i seen antifreez dripping from a bolt or something above the oil pan .. it looks lke a bolt poped off but idk what the bolt is suppose to look like can anyone help me out?
 

RonJ

Banned
Post a picture. One possibility is a leak from the coolant temperature switch for the radiator fan.
 


bert89

New Member
5+ Year Member



here is a pic i found online its the plug right next to the oild filter i believe.. im not 100 percent positive bcz it was kinda dark under my car but um... would any of these plugs on the block cause me to loose antifreeze?
 


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bert89

New Member
5+ Year Member
here it is think its the plug right above the oil filter .. not sure cuz i was lookin from bottom of car.. but would any of these cause a leak of antifreeze?
 

RonJ

Banned
I believe it is the coolant temp switch (thermo switch). It should have a 2 pin connector.
 

RonJ

Banned
Stop guessing. Crawl under the car to pinpoint the source of the leak. Take clear pictures of the source and post them. This is the only way you can get meaningful answers to your questions.
 

bizoneoeh

Ex-Gang Member
Registered VIP
Registered OG
5+ Year Member
10+ Year Member
you better hope it's not from your head gasket. did you make sure to take out any air bubbles when you changed your fluid?
 

RonJ

Banned
It's difficult for me to orient exactly where on the engine the picture is taken. Is the leak coming from behind the lower timing belt cover? If so, the water pump is likely the culprit.


 

RonJ

Banned
I am pretty sure your water pump is leaking from the bleed hole. You need to remove the crankshaft pulley and the lower timing belt cover to replace it.

 
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bert89

New Member
5+ Year Member
so i have to replace the whole water pump? whenever i cover the hole it stops leaking. should i just find a way to plug it up?
 

RonJ

Banned
You must replace the water pump. Covering the hole stops coolant from flowing out of the bleed hole but does not stop the water pump from leaking.
 

RonJ

Banned
The water pump is almost surely leaking. You can buy an OEM water pump for $45 online from Majestic Honda. This does not include shipping and handling charges. Call the Honda dealer and auto parts stores for price comparisons.
 

bert89

New Member
5+ Year Member
is it hard to replace? would you be willing to walk me through it. cuz im a noob at hondas ha.
 

RonJ

Banned
It's a moderately difficult job. Click here.

For 92-00 Civics, you need a special hex tool to hold the crankshaft pulley steady while you break the evil crank bolt loose. I think the hex tool is also needed for 88-91 Civics, but I am not absolutely sure.
 
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