1998 Dodge Neon Logo
Thomas Sloan Posted on Jan 15, 2013
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Temp gauge pegging out, but engine isn't hot to the touch.

Engine appears to be cool (gauge pegs out before the car fully warms up), upper radiator hose doesn't appear to have much pressure. Electrical system has also been acting strange (lights staying on after closing the door, power locks intermittently failing, car died at stop light then started right back up). Recently replaced water pump which I believe may have been leaking all over the alternator. Car also has a new battery and timing belt. Temp gauge was acting strange prior to the timing belt being changed out. Any suggestions?

1 Answer

Stephen

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  • Dodge Master 21,873 Answers
  • Posted on Jan 15, 2013
 Stephen
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You could replace the sending unit to cross it off the list of possible problems.
You could check resistance cold and then with the engine at normal temp too. The gauge on the dash could be faulty too.

5 Related Answers

66 chrgr

mike loshbough

  • 1011 Answers
  • Posted on Jan 24, 2009

SOURCE: car stalls, tach needle pegs,engine turns over but will not start

you need a crank sensor installed

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Anonymous

  • 166 Answers
  • Posted on Oct 31, 2009

SOURCE: radiator cool, engine temp = 140

sounds like your radiator is clogged, it will bring problems to you soon, you need to flush it really good, i dont think you need to replace it but it sounds like a typical clogged radiator, have it flushed, it you cant ur gonna need to replace it soon, if you keep running that car it might lead you to a temp problem while runing and u might end up hurting your engine...
u also need to check if your thermostat is working properly. go on google and look for the procedure, ur gonna have to take it off and do a test with hot water and a thermometer and see if its working properly.
hope this helps.
have fun!

Abdi Jama

  • 119 Answers
  • Posted on Nov 07, 2009

SOURCE: i have a coolant leak that appears to b coming

it can be water pump.

joyellowhors

  • 303 Answers
  • Posted on Jan 13, 2010

SOURCE: Long Crank Time When Hot

Timing belt/chain may have been put it slightly off time, when motor rebuild

Anonymous

  • 4044 Answers
  • Posted on Jul 06, 2011

SOURCE: started with temp gauge going dead,then engine

Sounds like your voltage regulator is bad but you in addition you have a short somewhere causing these issues. Before you added the electrical stuff you were describing verbatim what I went through just before my timing belt broke. The oil would appear to be good but if I made a left hand turn a little too fast the oil light would come on. Now the good news, all of those repairs, assuming you do not have water in your oil (indicated by a creamy white or grey color when you remove the oil fill cap on the valve cover) can be made with the engine installed if you have two jack stands, two hydraulic jacks and a good metric socket and wrench set. (Preferably floor jack models) The alternator is difficult to reach but can most easily be removed from the bottom rear of the motor. You will also want to get a Haynes Repair Manual on your vehicle before starting. Auto Zone will lend you the special tool needed to remove the Harmonic Balance Pulley if you don't have one. The whole job takes about 6 hours if you take the time to review the steps and pay attention when your taking it apart.

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