oldscsc Posted January 12, 2009 Report Posted January 12, 2009 Is there already a write-up on changing a thermostat that I didn't find? I'm tired of messing with our mechanic. He keeps putting me off. I've never changed a thermostat on any engine, let alone an LQ1. How does one change a thermostat on a 3.4 DOHC? Quote
Andrew Posted January 12, 2009 Report Posted January 12, 2009 super easy. takes 10 minutes. 2 bolts. Quote
oldscsc Posted January 12, 2009 Author Report Posted January 12, 2009 How far down in the radiator is it? How much antifreeze will I lose? I would rather do it myself than have someone else do it, especially if it will get done faster. Quote
95 vert Posted January 12, 2009 Report Posted January 12, 2009 It's on the engine, behind the snout that your upper radiator hose is hooked to. Quote
Andrew Posted January 12, 2009 Report Posted January 12, 2009 LOL. its not in the rad. follow the upper radiator hose to the engine. Quote
ManicMechanic Posted January 12, 2009 Report Posted January 12, 2009 super easy. takes 10 minutes. 2 bolts. On a DOHC car it can be a PITA. Quote
oldscsc Posted January 12, 2009 Author Report Posted January 12, 2009 super easy. takes 10 minutes. 2 bolts. On a DOHC car it can be a PITA. I read that it was somewhere in the rad somewhere on the internet. Figures. The mechanic said it would take about 30 minutes to do and it could be a pain. Quote
xtremerevolution Posted January 12, 2009 Report Posted January 12, 2009 super easy. takes 10 minutes. 2 bolts. On a DOHC car it can be a PITA. I read that it was somewhere in the rad somewhere on the internet. Figures. The mechanic said it would take about 30 minutes to do and it could be a pain. If it would take a mechanic 30 minutes to do, then I highly doubt it would be much of a pain. Just IMO of course. Quote
Andrew Posted January 12, 2009 Report Posted January 12, 2009 remove the air box lid and air intake tube to gain easy access. remove 2 bolts(1/2" ?). pull t-stat housing off engine. remove t-stat. remove old gasket and clean gasket surfaces. replace gasket or use rtv. reinstall. Quote
ManicMechanic Posted January 12, 2009 Report Posted January 12, 2009 13mm. On our cars, there's a nut on a stud that bolts down the coolant crossover. I had to bend that bracket slightly to get a socket on the stud. There's just a rubber seal around the t-stat. Quote
Andrew Posted January 12, 2009 Report Posted January 12, 2009 does not compute. ive only owned 91 and 92 LQ1's !!! there was a annoying bracket like that on my old L36, but it was attached to the t/b. i just removed it, wasnt really doing anything, and was a pita to get to. Quote
oldscsc Posted January 12, 2009 Author Report Posted January 12, 2009 I found the part in your picture Jay. What two bolts do I take off? Quote
ManicMechanic Posted January 12, 2009 Report Posted January 12, 2009 does not compute. ive only owned 91 and 92 LQ1's !!! there was a annoying bracket like that on my old L36, but it was attached to the t/b. i just removed it, wasnt really doing anything, and was a pita to get to. Yeah, it doesn't do much on this either, just keeps the coolant crossover from hitting the exhaust. Quote
AL Posted January 12, 2009 Report Posted January 12, 2009 There is one on the other side of the pipe like thing Quote
ManicMechanic Posted January 12, 2009 Report Posted January 12, 2009 I found the part in your picture Jay. What two bolts do I take off? There's a bolt and a stud as I recall. Take the 13mm nut off the stud and bend that bracket out of the way. Then take the 13mm stud out and the 13mm bolt. It will just come right out then. [edit] typing in the dark FTL. Quote
Night Fury Posted January 12, 2009 Report Posted January 12, 2009 Where would the thermo be on MY engine? I haven't really looked, I'm sure I could find it, but typing is easier! I <3 Scott! Quote
rockfangd Posted January 12, 2009 Report Posted January 12, 2009 my cutlass was a PITA because of the manifold getting in the way. It is nearly impossible to get the housing to clear the thermostat to pull it out and to put the new one in, I say it is about a 10 minute on most cars but about 30 minutes for a first timer on the 3100 Quote
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