Over heating

Asked by Feb 25, 2016 at 12:19 PM about the 2008 Chevrolet Express

Question type: Maintenance & Repair

I have a 2008 Chevy express van 5.3 vortex engine.
About this time last year I replaced the water pump
and put a new thermostat in twice. Well it started
running hot again two weeks ago. I replaced the
thermostat and it did ok for a few days and then
started over heating again. This time I checked the
water and it was low I added water and it seemed
to be fine. Drove it over the next few days no
problem. Now it's overheating again. I took the
thermostat completely out this time and trying it
without one. I drove it down the road a couple
miles and the computer screen says engine. Only
this time it's not boiling over and It didn't reduce
power like it did before. So my ? Is...is it OK to run
it like this and is it saying engine hot because it's
not registering because of the thermostat being
out or what? I realize the heater will not work like
normal with it out. But I'm just making sure it's OK
and I'm not about to ruin my motor. Thanks for any
help.

4 Answers

40

Howdy, does your engine have an electric cooling fan or just mechanical? Could be clutch or a bad relay on fan. Hope this helps.

Mechanical clutch fan.

40

Ok, the only way I know to test the clutch w/o replacing it was using a very HEAVY&LONG piece of folded cardboard, introducing it very SLOWLY...into the path of the fan. If it stops...it's bad....that said, clutches can't be that expensive NOT TO BE RISKY.....and try that. Hopes it helps...DISCLAIMER>>> of course.. JUST A SUGGESTION! Hope you get it figured out...good luck!

Since I took the thermostat out it hasn't overheated again. And my temp gauge isn't working either. Ive been driving it every where today. It's saying engine hot. But I figured it out. I let it sit 3 hours got in cranked it and right away it said engine hot. So I'm going to leave the thermostat out until it gets hot weather.

Your Answer

Express

Looking for a Used Express in your area?

CarGurus has 65 nationwide Express listings starting at $9,999.

Postal Code:

Chevrolet Express Experts

  • #1
    tenspeed
    Reputation
    290
  • #2
    dizybren
    Reputation
    240
  • #2
    Sarai Sanchez
    Reputation
    240
View All

Related Models For Sale

Used Chevrolet Express Cargo
9 Great Deals out of 358 listings starting at $2,519
Used Ford E-Series Wagon
38 listings starting at $9,995
Used GMC Savana
7 Great Deals out of 140 listings starting at $16,945
Used Ford E-Series Cargo
9 Great Deals out of 128 listings starting at $4,500
Used GMC Savana Cargo
13 Great Deals out of 436 listings starting at $2,995
Used Chevrolet Silverado 2500HD
7 Great Deals out of 776 listings starting at $3,995
Used Chevrolet Silverado 1500
184 Great Deals out of 11,018 listings starting at $1,288
Used Chevrolet Suburban
4 Great Deals out of 376 listings starting at $5,871
Used Mercedes-Benz Sprinter
28 listings starting at $51,731
Used Ford F-150
458 Great Deals out of 10,025 listings starting at $1,400
Used Ford Transit Cargo
4 Great Deals out of 316 listings starting at $23,990

Used Cars For Sale

2017 Chevrolet Express For Sale
8 listings starting at $41,530
2016 Chevrolet Express For Sale
8 listings starting at $28,885
2015 Chevrolet Express For Sale
9 listings starting at $22,994
2014 Chevrolet Express For Sale
5 listings starting at $19,950
2013 Chevrolet Express For Sale
4 listings starting at $12,991

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.