86White_T/A305

I agree with Pocket,not a big fan of dexcool.But yes I agree on purified water and some good old regular coolant.ive seen some nasty clogged cooling systems that had to be thoroughly flushed of dex and switch to normal coolant.

TPI TERR

iTrader: (9)

Really what green coolant do you prefer?

Havent had any issues with dex cool. Lol

INTIMIDATOR Z

iTrader: (4)

Yeah I don't trust dexcool at all. I just run regular old green stuff. Almost off work

one92rs

iTrader: (5)

i drain the whole system including the block. then i add one and half gallons green stuff and 1 bottle water wetter. and the rest water. that has worked for me in many a vehicles.

INTIMIDATOR Z

iTrader: (4)

you know your only supposed to use a couple of cap fulls of water wetter right? not the whole bottle.

one92rs

iTrader: (5)

i have used the whole bottle of water wetter or purple ice. this is from water wetter web site

Use one bottle for most passenger cars and light trucks, treats 3 to 5 gallons or 13.2 to 15.9 liters. Vehicles with larger cooling systems should use two bottles. Small cooling systems should use 1oz (3 to 4 capfuls) per quart

INTIMIDATOR Z

iTrader: (4)

hmm says different on my bottle of water wetter. eh whatever.

waiting for my buddy to come with his vacuum pump and coolant. hopefully we can get this thing worked out.

one92rs

iTrader: (5)

trust me the whole bottle will not hurt anything. is the vacuum pump to suck it all down and hold pressure on it/

the 4-5 capfulls is for smaller cooling systems.

INTIMIDATOR Z

iTrader: (4)

i think its supposed to suck any air bubbles out.

INTIMIDATOR Z

iTrader: (4)

Ok well ok well got the air out and put audi/vw coolant in it and no more noise but my radiator is pushing coolant out and creating air again. Need to swap radiators and see what happens. Hopefully after that were good

86White_T/A305

is the steam tube still sputtering air out or is it a constant stream of fluid now.sounds like your getting close to fixing it.i dont expect you to get all the air out the first time.i got lots of little bubbles coming up.i also tried holding the rpm at 1500-2000rpm with the rad cap off and the car warmed up and added fluid to the rad.put the cap on and then let it idle.as i said before..i burped my car 3 times before i was happy.

INTIMIDATOR Z

iTrader: (4)

well im goin to change my radiator first before i try this again. my buddy said he also thinks it my tune since im at *14 degrees timing across the tables (havent got to tune it yet). he said its makin the car work harder thus causing it to heat up.

INTIMIDATOR Z

iTrader: (4)

well havent changed the radiator but did fix the leaks in it and its still building too much steam pressure and running hot. it held pressure fine and took in coolant. still dont think its a head gasket though. think im goin to drop it off at my mechanic tomorrow and have him look at it. im gettin sick of tryin different things with no success. to the point where im about to pull it all out and sell it.




heres a little video i made. this is after it was warmed up and drove it up the street. waterpump was still making popping noise but not as much as before.

http://www.youtube.com/watch?v=WuFAMkiBQ-c

86White_T/A305

Dont give up just yet dude.Im sure there will be something we are over looking.I know its very frustrating.Have your mechanic give it a thorough once over and hopefully he will have answer of the problem and better yet..a solution.If not..lq4's are fairly cheap blocks to build and swap right inplace.

INTIMIDATOR Z

iTrader: (4)

Nah ain't goin to sell it.just frustrating. Tried everything and still havin this issue. My mechanic said he can look at it next week. Hopefully he can fix it, then I can tune it and actually drive it.

INTIMIDATOR Z

iTrader: (4)

well felt like driving the car for my birthday last night to the local Bobs big boy (about 15 miles away). took the streets and pretty much hit every red light. car ran good (although the water pump was makin noise) until i got to about a block away from Bobs then it started to sputter. pulled over for a sec and looked under the hood. everything looked fine, no spitting coolant or anything like that. after hanging out i drove it home and didnt have any issues all the way home besides the waterpump makin noise. still goin to drop it off at my mechanic to see what he says.

86White_T/A305

Good luck my friend.Hopefully its nothing serious and easy to fix.

86White_T/A305

Im hoping no news is good news?Whats the status,im curious as to the issue and if you were able to fix it?

INTIMIDATOR Z

iTrader: (4)

i just dropped it off at my mechanic right now. i told him whats goin on and he said its probably an air pocket or block. hes goin to look at it tomorrow. im hoping he can get it figured out so i can drive it. sick of driving my s10.

INTIMIDATOR Z

iTrader: (4)

well just picked it up from my mechanic and they couldnt find anything. now what?

i think im goin to pull all of the drain plugs and see what i can find, if that dont do anythign then its coming out and im either doin another 5.3l, carbd 350/355/383, or if i can find a 6.0l thatd be nice.

one92rs

iTrader: (5)

what all did they say they did

TPI TERR

iTrader: (9)

What condition was that lm7 in when you picked it up? Mileage ? Etc

INTIMIDATOR Z

iTrader: (4)

they said they couldnt get it to overheat or anything. i dont even think they looked at it.

i bought 2 of them at the same time. one he said supposedly had 60k and the other he wasnt sure. i picked the cleaner of the 2. the other one ls1adam84 bought and it was all messed up inside.

i just dont get how it was running fine and i havent even been driving it much and now its got this freakin issue?

anyways pulled a bunch of crap off of it today and was wondering. is there supposed to be any passage on the upper part fo the drivers side of the block where the waterpump goes?

INTIMIDATOR Z

iTrader: (4)

oh and my power steering pump finally decided to leave me today. hes been screamin the whole time ive been messin with this coolin issue.

INTIMIDATOR Z

iTrader: (4)

i dont have any hole on the head coming into the block and the drivers side of the block.

pic shows that i need return from both heads.

INTIMIDATOR Z

iTrader: (4)

alright so i think i havin the same issue this guy had.

http://www.ls1truck.com/forums/lsx-t...verado-14.html

86White_T/A305

Anything is possible.Thats an interesting theory.Question is...were your heads ever taken off and put back on?Thanks for that link,it lets me know what happens if the head gaskets are installed wrong...even though they are clearly marked.You cant rule out human error.

INTIMIDATOR Z

iTrader: (4)

i have no idea if the person I bought them from did but I haven't. I'm goin to see if I can pop through it and if not ill pull the head off probably this weekend.

TPI TERR

iTrader: (9)

Damn my power steering pump gives me a small whine. Weren't you running with out a reservoir for a while ?

one92rs

iTrader: (5)

so what you are saying is that the gasket is blocking the coolant coming from the head right? im hoping that that is all that is wrong. here are cheap gaskets that i have used before with no problems.
http://sdparts.com/details/gm-perfor...parts/12498544

and 2 of these.

http://sdparts.com/details/gm-perfor...parts/12498545

INTIMIDATOR Z

iTrader: (4)

im hoping so. im goin to try and put a hole in it and see if itll flow anything.

one92rs

iTrader: (5)

it will flow a lot if it is done correctly. if you look at the pic of the gaskets in the link i sent you there are holes in it just for that.

wow. things we dont know. im hoping that is all it is. this is the exact reason why i am going to rerbuild the 47000 mile ls1 i have in the garage. you never know the inside unless you get there. i think that is one of the most valuable lessons i have learned as a mechanic for 25 years

INTIMIDATOR Z

iTrader: (4)

yeah just put a hole in the headgasket where there should have been and now i got flow. need to get a new power steering pump now and then put everything back together and hopefully i should be good until i decide to pull the heads off. i wanna try and get maybe some ported heads or something when i do pull the heads off. so for now im goin to see how this works out and then when i get all the parts and stuff collected im goin to swap it i guess or if i get bored ill just swap the head gasket. lol

INTIMIDATOR Z

iTrader: (4)

OMG FINALLY!!!!!!!!!!!!!!!!!!!

no more bubbles, steam, overheating, waterpump noises. oh and my temp gauge works since its got water flowin by it now.

heres a video of it running after about 20 minutes.

http://www.youtube.com/watch?v=-OF0RM7hg4Q

86White_T/A305

awesome dude.so it was the head gasket all long?did it need to be replaced or just flipped around?...I call for a victory burnout video

INTIMIDATOR Z

iTrader: (4)

well for now i just put a hole in it but its the size of the opening. im plannin on doin some heads soon so ill change it out when that comes along. i dont drive much or far and i have AAA if something does happen.

hoogiesngrinder

iTrader: (1)

Had a feeling it was head gasket related. Good to hear!

one92rs

iTrader: (5)

now get out there and drive the damn thing.

INTIMIDATOR Z

iTrader: (4)

my buddy just called and asked me if i wanna finish street tuning it tonight. so ill be headin over there in a bit. hope everything goes well.

one92rs

iTrader: (5)

good deal. there is a lot to be had with a properly tuned 5.3. dont be afraid of timing either. i have seen them hold 32* timing. good luck.

INTIMIDATOR Z

iTrader: (4)

OMG eventhough we didnt get to do a full wideband tune damn the car moves now. was doin like 65ish comin back on the freeway, floored it and the car downshifted chirped and took off. oh and my temp gauge and hptuners is the same. car runs around 190ish

TPI TERR

iTrader: (9)

good to hear! post videos !

Demon355

iTrader: (1)

Glad you figured out the problem!