Coolant Leak @ Air Pump
#1
Coolant Leak @ Air Pump
I haven't had the time this morning yet or the proper lighting to look at this but I popped the hood on my 90 Pickup 22R when I was filling up with gas and noticed coolant coming from one of the hoses that goes to the air pump. It wasn't a lot but it was enough that I noticed it. The gas station's lighting was crappy and I didn't have my flashlight to diagnose further. I'm hoping I can get out of my work early for lunch to take a deeper look but was wondering if anyone has had this before? My guess is that the intake manifold has a leak? I did check the coolant level and it wasn't low.
I'm just kind of freaked out because the truck is running great. I did a new head, chain and Weber carb a few years ago and all is has been well.
Thanks for any insight. I appreciate it.
I'm just kind of freaked out because the truck is running great. I did a new head, chain and Weber carb a few years ago and all is has been well.
Thanks for any insight. I appreciate it.
#2
Registered User
Join Date: Aug 2008
Location: Mosinee, WI
Posts: 64
Likes: 0
Received 0 Likes
on
0 Posts
I'm dealing with the same issue on my 1988 2wd 22r. It's a Cali emission truck so it has that smog pump(?) and ac. Needless to say there's 10 gallons of sh#% in a 5 gallon pail under the hood. Mine doesn't seem to be leaking consistently, only if it sits a couple of days or at start up? It is just a little leak as well, maybe a 2" diameter puddle. Seems to only leak when the motor is cold at start up. If I drive it every day it doesnt seem to leak on the ground.
Next to the starter is some sort of emission air valve(?). It is metal with a couple of small vacuum hoses and a larger hose. The starter is right next to it and makes it a pita to even get your hand on it or see it completely. It seems to be leaking from there as far as I can see, like some sort of internal diaphragm has failed and it is leaking through seam of the housing itself. I am going to have to yank the air cleaner and the starter to get a better look and have the ability to even get my hand up in that area. I have a 1985 fsm and it doesn't show the part I see under the hood of my '88.
Does antifreeze run through the smog pump system or is it a hose above that air (reed) valve. I'm baffled at this point.
My 4wd 87 isn't a Cali emissions truck and the 88 is new to me so I'm not familiar with the smog system yet. Hopefully we can figure this out.
Next to the starter is some sort of emission air valve(?). It is metal with a couple of small vacuum hoses and a larger hose. The starter is right next to it and makes it a pita to even get your hand on it or see it completely. It seems to be leaking from there as far as I can see, like some sort of internal diaphragm has failed and it is leaking through seam of the housing itself. I am going to have to yank the air cleaner and the starter to get a better look and have the ability to even get my hand up in that area. I have a 1985 fsm and it doesn't show the part I see under the hood of my '88.
Does antifreeze run through the smog pump system or is it a hose above that air (reed) valve. I'm baffled at this point.
My 4wd 87 isn't a Cali emissions truck and the 88 is new to me so I'm not familiar with the smog system yet. Hopefully we can figure this out.
Thread
Thread Starter
Forum
Replies
Last Post
jon.r
General Vehicle Related Topics (Non Year Related)
8
07-11-2015 03:34 PM
Avenged
95.5-2004 Tacomas & 96-2002 4Runners
4
07-09-2015 07:55 AM