engine running cold constantly

  1. Established Member Joined: Mar 2007 Middlesbrough Posts: 1186 mazda 3 mps
    #1
    on a 1.6 16v the engine is constantly at 70 degrees, it will only go upto 90 degrees if at a standstill and once moving again comes right back to 70 in minutes...
    the car also hessitates below 3.5k rpm and after that its fine.

    my research has come to the green water temperature sensor or the thermostat?

    can anyone give a bit of useful input in please!
    cheers.
  2. Newbie Joined: Aug 2010 Posts: 25
    #2
    mines does the oppisite well use to check the heater see if its heating up mine gets reallty hot and it turnt out to be my thermostat was gone and stuck open or closed i cant remember now but causeing it to make the fan come on all the time changed that and all good for £11 from local garage give it a try

    cheers
  3. Established Member Joined: Mar 2007 Middlesbrough Posts: 1186 mazda 3 mps
    #3
    yer my heaters are working perfect. also on idle it has a slight blip every few seconds, could this be related?
  4. Newbie Joined: Aug 2010 Posts: 25
    #4
    mine does that it seivs i think its my ait filter tho cause some noob put a cone rioght on the inlet on mine and no hose either but what air filter you got
    also what does the vts run at running temperture

    cheers
  5. Established Member Joined: Mar 2007 Middlesbrough Posts: 1186 mazda 3 mps
    #5
    its standard, its actually not a saxo vts, its my girlfriends 206cc with the jp4 amongst it. every vts ive had in the past runs at 90 degrees.
  6. Frequent Poster Joined: Aug 2009 Manchester Posts: 570 Mercury Grey VT?
    #6
    sounds like thermostat could be stuck open allowing coolant to cool down faster and temp to drop quick.
  7. L-plater Joined: Jul 2010 oswestry Posts: 33 205 gti 1.6 graphite grey saxo 1.4 furio orange
    #7
    mine keeps itself about 70 degrees, guess its the cold weather