temp gauge question

40

Asked by Jan 28, 2012 at 07:21 PM about the 1991 Nissan 300ZX

Question type: General

The temp gauge on my 91 keeps jumpimg up & down. When I get on the gas & I'm running at 3000rpms the temp needle goes to cold & stays there. When I let off the gass it goes to the middle showing regular temp.... What do you think causes this? Also when I bought the car they guy that the over flow radiator hose pinched off. I took the clamp off so the radiator overflow could be used again....any reason why the guy would have it pinched off?

2 Answers

1,415

it sounds like your thermostat is stuck wide open or possibly some one took it out -- that is assuming you have plenty of coolant in the car. Sometimes you can gain power by keeping the motor cooler. I see no good reason to pinch off the overflow tank -- buy a new rad cap while you re messing with stuff -- they go bad more than you think!

40

I flushed the system & refilled the coolant with 50/50. I've been keeping my eye on the coolant level & everything seems fine. If there was air is the system would it work itself out?

Your Answer

Nissan 300ZX Experts

  • #1
    Tom Demyan
    Reputation
    460
  • #2
    Jamie Staples
    Reputation
    300
  • #3
    dandyoun
    Reputation
    240
View All

Related Models For Sale

Used Nissan 240SX
6 listings
Used Ford Mustang
542 Great Deals out of 35,433 listings starting at $1,200
Used Toyota Supra
62 listings starting at $29,995
Used Chevrolet Camaro
413 Great Deals out of 30,553 listings starting at $1,450
Used Chevrolet Corvette
166 Great Deals out of 19,671 listings starting at $3,000
Used BMW M3
35 Great Deals out of 2,028 listings starting at $6,995
Used Mitsubishi Lancer Evolution
6 Great Deals out of 585 listings starting at $10,000
Used BMW 3 Series
1,061 Great Deals out of 33,453 listings starting at $1,000
Used Mazda RX-7
71 listings

Used Cars For Sale

1996 Nissan 300ZX For Sale
6 listings starting at $3,995
1993 Nissan 300ZX For Sale
15 listings starting at $4,500

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.