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1998 Nissan Maxima overheating

Tiny
JONMUSTON
  • MEMBER
  • 1998 NISSAN MAXIMA
  • 3.0L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 90 MILES
Car over heats on long hill climbs only. When on flat or rolling roads temp remains constant at normal reading. Coolant level checked, no loss and no leaks from anywhere. Temp quickly drops on descent. At top of hill, fans checked and going. Radiator water a good green antifreeze colour. Fans rechecked from cold by turning on air con, spinning by time I opened bonnet but temp still slowly climbing to normal position. Got me beat. Thanks Jon
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Tuesday, December 23rd, 2014 AT 8:06 PM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Been chasing a similar problem on another car, you will have to check and I have added things you have done already,
1 No external leaks
2 Cooling fans working at correct temp.
3 Radiator clean internal and external
4 A/C condenser fins not blocked (this can restrict air flow)
5 Thermostat not stuck part open (this was our problem)
6 Water pump impeller ok
Sort through these first.
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Tuesday, December 23rd, 2014 AT 9:37 PM

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