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What should the engine temp. be for 5.3L?

mblrds

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siume99 Enthusiast

siume99

Posted
Posted

First, I need to say that I like your site a lot.  I've been reading the posts for about a month now.  My hope now is to tap your knowledge for my questions.

I'm used to driving a '90 Oldsmobile Silhouette mini van with an engine temp of 180F.  I've been asking around work and I'm finding out that everyone's engines seem to have a 180 or 190 degree thermostat (all car or mini van owners).  Are GM trucks the same way?  Should my temp of around 205F be of concern?  No problems that I know of.  This Illinois summer of late makes quick order of raising the temp when I start the engine.  No flucuation afterwards.  Perhaps I'm just used to the slow warming up of a minivan with 206,000 miles on it.

Hopefully my signature comes up.  If not, here is some info.  I bought my 2001 Tahoe on April 6, 2001.  (I never saw my silver bullet van again).  It's the LT 4x4 with climate control, 5.3L engine, 3.73 axle ratio with locking rear diff, towing package, and third row seat.

Thanks in advance guys/gals.

Shaners Senior Enthusiast

Shaners

Posted
Posted

First of all, Welcome!!!

Second, that is where my gauge rides in the truck in my Signature and where it was with the '00 5.3L I traded in.  Just to the left of the 210 mark.

76BBSub Enthusiast

76BBSub

Posted
Posted

Same with my '99 5.3, and it warms up very quickly.  They like to have them run pretty hot for emissions reductions, same reason they design them to warm up quickly.

Jeff

mblrds Enthusiast

mblrds

Posted
  • Author
Posted

Yeah, doesn't matter how hot or cold it is outside, my gauge stays just left of 210, once the truck reached operating temp.

siume99 Enthusiast

siume99

Posted
Posted

Thanks for the assurance.  Do newer cars have that same operating temperature?  Don't cars have tougher emissions standards than light trucks?

LT Enthusiast

LT

Posted
Posted

siume99, First of all. WELCOME to the Forum. I hope you enjoy yourself, learn a little bit and laugh a lot.

My LT 5.3 runs as the others do; about 205. That really isn't a lot for Chev. V-8's. My other car often hits 225 or so (especially traveling under 45 MPH. It's also a sblock Chev. I hope this helps.

NewbieZ71 Senior Enthusiast

NewbieZ71

Posted
Posted

Welcome! and smae here with the 5.3.  I was a little surprised that switching to synth oil didnt decrease it at all.  Did in all my other vehicles...

illmac77 Enthusiast

illmac77

Posted
Posted

Before i changed my thermostat it ran just to the left of 210 now it runs just right of 180 installed a 160 degree thermostat from hypertech

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