Coolant leak comming from under intake manifold
06-05-2008, 07:07 PM
#1
Maxipimp
Thread Starter
Join Date: Dec 2004
Location: Dallas, TX
Posts: 72
Coolant leak comming from under intake manifold
Hey guys, i just had my radiator replaced, radiator fan assy replaced, power steering pressure hose replaced and i recharged my a/c system with those autozone recharge kits in the last three days (spent alot of bucks!)... and now when i go to top off the radiator, after about 14 hours (on and off) of driving in texas 95 degree weather, all the antifreeze leaks out the engine rapidly somewhere in the middle of the engine block. Ive ran hot twice and a close third and if i use my a/c, the temp guage climbs fast. one guy mentioned my thermostat but i cant see that as being a problem. for example, i bought some 50/50 coolant and poured it in the radiator when the car was cool (Fig.1) 
and it seemed to be comming out at the same rate i was pouring it in. i cannot pin point the leak but it seems to be comming from under the IM somewhere close to the thermostat hose thingey (fig.2)
The leak is not visible at all and i had to take off my intake up tp the TB just to get a better view of where its comming from. I need your help guys... I have already pulled all my hair out and ready to give up!!
and it seemed to be comming out at the same rate i was pouring it in. i cannot pin point the leak but it seems to be comming from under the IM somewhere close to the thermostat hose thingey (fig.2)The leak is not visible at all and i had to take off my intake up tp the TB just to get a better view of where its comming from. I need your help guys... I have already pulled all my hair out and ready to give up!!
06-06-2008, 01:16 AM
#4
Member
Join Date: Jun 2006
Location: OC, CA
Posts: 56
Clean the engine first. Gunk Foamy Engine Brite (get "Foamy" not the regular version) is excellent for this.
Make sure the engine is totally dry, then do as he suggested.
06-06-2008, 11:06 AM
#6
most likely from IAVC
its the idle control module right under the intake manifold opening
theres a hose connected to it which you need to make sure the metal endgrip clips for the hoses are secured properly at the END of the hose.
those clips make the difference in a leak or no leak
if this continues, the stepper motor on the IAVC may get wet and damaged, in which case u'll see eratic idle
its the idle control module right under the intake manifold opening
theres a hose connected to it which you need to make sure the metal endgrip clips for the hoses are secured properly at the END of the hose.
those clips make the difference in a leak or no leak
if this continues, the stepper motor on the IAVC may get wet and damaged, in which case u'll see eratic idle
06-06-2008, 05:04 PM
#7
Maxipimp
Thread Starter
Join Date: Dec 2004
Location: Dallas, TX
Posts: 72
most likely from IAVC
its the idle control module right under the intake manifold opening
theres a hose connected to it which you need to make sure the metal endgrip clips for the hoses are secured properly at the END of the hose.
those clips make the difference in a leak or no leak
if this continues, the stepper motor on the IAVC may get wet and damaged, in which case u'll see eratic idle
its the idle control module right under the intake manifold opening
theres a hose connected to it which you need to make sure the metal endgrip clips for the hoses are secured properly at the END of the hose.
those clips make the difference in a leak or no leak
if this continues, the stepper motor on the IAVC may get wet and damaged, in which case u'll see eratic idle
06-06-2008, 09:59 PM
#8
a majestic blue AE? wow i would b all over that
like i said its the IAVC
locate it in fsm if ur not sure where it is
if u have the idle prob like i suggested... u need to get the whole IAVC unit replaced.
obviously cant give u guarentees but ive had this prob and know it like the back of my hand
like i said its the IAVC
locate it in fsm if ur not sure where it is
if u have the idle prob like i suggested... u need to get the whole IAVC unit replaced.
obviously cant give u guarentees but ive had this prob and know it like the back of my hand
06-07-2008, 07:10 PM
#9
Maxipimp
Thread Starter
Join Date: Dec 2004
Location: Dallas, TX
Posts: 72
just an update... still havent found the problem. i had my iacv checked and it is good. my idle was goin crazy because the water wasnt circulating thru it. im trying to keep from dismantling the IM until i can send it to a real shop. and as far as my first post, the water wasnt comming from where i thought it was comming from. it is comming from smack dab in the middle of the block under the IM. didnt now the engine block itself was so short!! localized the leak, now i need to send it in to find out if its something severe or just a seal or a busted hose...
06-22-2008, 06:07 PM
#10
Maxipimp
Thread Starter
Join Date: Dec 2004
Location: Dallas, TX
Posts: 72
Update number two: i found the friggin problem... the coolant was leaking thru a busted hose called a "bypass hose". it was a bastard to get the clamps off. im goin to be replaceing them with screw clamps.
bought a new one off ebay (made by Dayco). now im asking myself "what would cause this thing to blow?"
bought a new one off ebay (made by Dayco). now im asking myself "what would cause this thing to blow?"
Last edited by Swiyzee; 06-22-2008 at 07:00 PM.
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