Question about 1989 Plymouth Reliant

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Thermostat sticking drove 200 miles with thermostat stuck on high so no heat. Where is thermostat in engine? 1989 plymouth reliant k 4 cyclinder

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Follow the top radiator hose to the top part of the motor and youll fine the thermostat there the housing is held on by 2 bolts

Posted on Dec 28, 2008


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1 Answer

88 plymoth reliant is overheating and no heat is coming out of vents

With these types of issues it is always best to start by flushing out the cooling system and replacing the thermostat. If you get no heat out the vents, that points towards a clogged heater core which usually will need to be replaced.

Feb 26, 2011 | 1989 Plymouth Reliant

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Where is the fuel pump relay on a 1989 plymouth reliant

Relays are usually found in the engine compartment near the battery. You should find a small (square or rectangular) black box (usually black). Take off the cover and reveal the relays - the inside of the cover should indicate which relay is which - here you'll find the fuel pump relay location.

Please let me know if you need further assistance.


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Jul 23, 2010 | 1989 Plymouth Reliant

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89 reliant plymouth car stall out

You're right; It sounds like fuel delivery, but start with the simplest suspects first.
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Apr 18, 2010 | 1989 Plymouth Reliant

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Where is the fuse box located in my 1989 plymouth reliant. I have looked under steering column and under the hood, still cannot find the box, the radiator fan will not turn on.

for that relay/fuse it would be located likely in the fuse panel in the engine compartment. generally they are located near the battery and will have a cover on it.

Oct 06, 2009 | 1989 Plymouth Reliant

1 Answer

Thermostat location

The thermostat is located where the top radiator hose enters the block.

Jun 07, 2009 | 1989 Plymouth Reliant

2 Answers

My reliant K is is constantly over-heating even after 10 minutes of running time. Is that a thermostat problem?

Reliants run very hot normally, but you are definitely having a cooling problem. More than likely your thermostat is stuck in the open position. The reliant comes with a 220 degree thermostat, and what that means is that it doesn't kick in until 220 degrees before your fan goes on to cool down the radiator. It is much better to switch to a 180 degree thermostat, which will kick in sooner to cool everything down. Your Reliant also came with a single core radiator, which is also part of the cooling problem on these cars. It is a far better idea to switch to a dual core radiator. Between the 180 thermostat and the dual core radiator, your cooling problems will be a thing of the past.



May 25, 2009 | 1989 Plymouth Reliant

1 Answer

Engine Races

sounds like a faulty idle speed sensor

Apr 11, 2009 | 1986 Plymouth Reliant 4 Door

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Replace windshield wiper 1989 Reliant

tell him to take it to an auto parts shop
they replace them for the cost of new blades

Jan 25, 2018 | 1989 Plymouth Reliant

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1989 Reliant K running poorly

my reliant (89) idles very high when you start it, then settles
down, but while driving it starts to chug very bad. I have new plugs, wires, distribitor cap and rotary button. How do I fix it??

Aug 19, 2008 | 1989 Plymouth Reliant

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