Ls7colorado

iTrader: (3)

Well if its not getting combustion gasses in the water then they shouldn't be the problem

I usually run the GM gaskets

CattleAc

iTrader: (7)

I still think your water pump is turning backwards...

Jake33

Jake33

See the arrow on pulley. Thats way it goes am i right

CattleAc

iTrader: (7)

,


Yes your right, my bad. I'm an idiot...I was trying to make the diagram to complicated...

RB04Av

The WP is OK. As long as the back (smooooove side) of the belt is on its pulley, it's right.

Ls7colorado

iTrader: (3)

You can tell by witch side of the belt is touching any pulley, ribbed side will turn the same direction as crank, smooth side will turn the opposite.. no mater what

Edit: just saw that answer was already up there....

Jake33

Well idk guys all I can do is pull heads check
the head gaskets. Which I highly doubt. There wrong. 7 miles on them.

Che70velle

iTrader: (6)

No need to pull the heads to see if gaskets are backwards. Pull water pump and stick your finger through the water pump hole in block, and up into the head. If it’s backwards, you can’t obviously do that. I doubt that’s your issue however. Seems to be moving too much water for that to be the case.

Jake33

it feels open. No issue. There

draab2006

iTrader: (1)

When I got my LQ4 up and running in my S10, I was having similar issues that you are. I have a 160 degree stat and it was climbing toward 220 right after startup. I tried everything, until finally I got it to bleed out the trapped air (after filling the block through the water pump neck) by taking the steam vent line off, starting it up, and blipping the throttle up toward 4k RPM for about 5-10 seconds. It sounds crazy, but I saw tons of bubbles shooting out of the steam vent, and then finally just a solid stream of coolant. Slip the hose back on, and bam, temps shot down to 175 in no time. I read on another forum that these motors are notorious for needing that extra RPM to get the waterpump to flow enough to push the bubbles away from the t-stat. Obviously I wouldn't recommend this if you're already at 230+. Try it once your motor is above the temp the stat should open.

LilJayV10

iTrader: (39)

Is your electric fan turning the right direction? Pulling? Also, is it actually a puller fan and not a pusher?

What temp do you have your fan coming on at?

I think you would also benefit from a fan shroud.

Jake33

Okay I got it figured out. Turns out the autometer gauge was wrong with eletric sender. Brand new.
it runs about 200 to 210 never gets hotter

Thanks for all the help. It also had tons of air in system. By removing bypass hose it showed it had air in it. It then had a steady stream

Thanks guys

Ls7colorado

iTrader: (3)

Lol I thought that was the first thing you checked.
glad you got it!

Jake33

Actually it was I had autometer went to buy equss at oreilys they read same thing. Therefore 2 gauges were wrong. 2 brand gauges.
I was so pist

Che70velle

iTrader: (6)

Good to hear. I’d bet the air was most of the problem. Thanks for the update.