what causes the engine temperature light to light up on a 1971 chevy chevelle

Asked by Jan 02, 2017 at 08:53 PM about the 1971 Chevrolet Chevelle

Question type: Maintenance & Repair

3 Answers

81,695

Low coolant, bad thermostat, running hot, no shroud, air in the cooling system.

Best Answer Mark helpful
22,965

A lot of these older engines run warm and benefit from a after market radiator, and shroud with extra flumes and shroud. Running rich. Oil passageways clogged, carbon build up on internal parts, oil pump screen clogged , bends in exhaust, passageways in radiator clogged up, Automatic transmission cooling in the radiator raises temp, may add a external trans oil cooler, thermostat is rated for to high a temp and needs a lower temp rating, May need a new thermostat, Change radiator hoses over to heavy duty hoses and or racing style plumbed pipes with heat risers, put on a new or racing high performance water pump, Make sure air filter is clean, All plugs & wires are good, If PCV is in use make sure it is clean or absolute crankcase manifold, And all vacuum lines are good and engine does have vacuum, Valves need carbon cleaned off, High Idle, Wrong cam for everything else installed, Carb too big, Jets to big, Head & intake gaskets shot, Thick hard carbon built up under the intake manifold, wrong type of fuel, I am sure I could think of some more with more time.

22,965

If it has under drive pulleys on it go back to stock size.

Your Answer

Chevelle

Looking for a Used Chevelle in your area?

CarGurus has 338 nationwide Chevelle listings and the tools to find you a great deal.

ZIP:

Chevrolet Chevelle Experts

  • #1
    Squatt
    Reputation
    710
  • #2
    LouB
    Reputation
    280
  • #3
    18TandSVT
    Reputation
    250
View All

Related Models For Sale

Used Chevrolet Camaro
224 Great Deals out of 28,922 listings starting at $3,900
Used Chevrolet Corvette
101 Great Deals out of 15,518 listings starting at $3,900
Used Ford Mustang
270 Great Deals out of 37,082 listings starting at $2,150
Used Chevrolet Impala
397 Great Deals out of 25,595 listings starting at $799
Used Dodge Challenger
111 Great Deals out of 25,139 listings starting at $7,995
Used Dodge Charger
242 Great Deals out of 32,689 listings starting at $1,800
Used Chevrolet Nova
132 listings
Used Chevrolet Monte Carlo
3 Great Deals out of 937 listings starting at $3,900
Used Pontiac GTO
358 listings starting at $2,950
Used Chevrolet Malibu
480 Great Deals out of 49,315 listings starting at $2,000
Used Pontiac Firebird
7 Great Deals out of 674 listings starting at $3,695
Used Chevrolet Caprice
126 listings starting at $1,350
Used Chevrolet C/K 10
298 listings

Used Cars For Sale

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.