Question about 1999 Saturn SL

1 Answer

91 SL1 problem

I have a 91 SL1 and the engine overheats when I stop in the traffic. I have never heard or see that radiator fans spinning. Can it be coolant temperature sensor or the fan itself? Any body any idea, how can I resolve this problem cheap and easy way. Thanks alot K. cooling fan wont turn on i want to know where sensor is located so i can replace it to find out if thats the problem or is there any way i can test the fan motor still works?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 625 Answers

The sensor is located at the rear side of cylinder head between transmission and engine under the thermostat hosing but make sure to have some one aply direct power to fan to se if fan still goos if not replace it, and the sensor all what you have to do to test it start the car unplug the sensor and if the fan come on then replace the sensor i will recomend to replace thermostat also and make sure is full of coolant

Posted on May 31, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

I have removed the thermostart of my grand cherokee jeep 1996,i still experience temperature rising while i am in hold up or traffic but reduces as soon as i accelerate.


the thermostat was not the problem but the viscous fan hub ( fan clutch) is
while it is spinning , there is no drive action when idling ( as at lights , slow traffic , hills in low gear etc) and so it is not pulling air through the radiator when needed
your statement that the temp reduces as soon as you start moving means that with forward movement the air is flowing through the radiator and cooling the coolant

Jun 20, 2016 | Jeep Cars & Trucks

1 Answer

How do I fix my engine that gradually overheats in traffic or in idle?


If it only overheats when stopped and stays cool or normal when driving that I would suspect that the radiator fan is not working. Check the obvious like fuses and relays. The relay can be swapped with another identical relay in the fuse block. If those check out than you will need some more advanced diagnostic equipment and info. If you up to the challenge I can provide you with some more in depth info to help you solve.

Aug 20, 2015 | 1995 Ford Escort

1 Answer

Check engine comes in when engine starts to overheat, which it does in slow traffic. Radiator, fans, water pump are OK.


Did you check/replace the thermostat? Another possible cause may be hair line cracks in the head(s).

May 10, 2014 | 2006 Mitsubishi Lancer

1 Answer

Engine overheating quickly


there are 2 or 3 fans up front on all A/C equipped cars.
the fan closed to engine (rad rear) turns on parked and idling
all engines will overheat parked, if the fan goes dead.
so are you saying this fan is dead.?
if it dont overheat moving fast then the cooling system is usually good
and then you stop at a traffic light this fan must turn on.
on cars with 3 fans , some stage up, 2 on if too hot. or all 3 on.
the FSM covers this logic clearly.
in the USA car.
the element has 2 fans (some engine options my differ)
the right fan is for A/C
and left fan is for engine cooling, (im looking at alldata.com to see that)

the fan turns on via a relay that he PCM controls
the PCM see the ECT sensor in the engine go to over say 225F and
it closes the relay, and the fan spins at full speed.

fuse 4 runs this relay, in the fuse box
the relay and fuse are named
radiator fan.

Mar 01, 2014 | 2004 Honda Element

1 Answer

The radiator fan on my 2007 bmw 525i works fine while car is driving. Once i stop at a red light or in traffic the the fan stops working, ac blows hot air and mins later the car overheats. The car has a...


My guess is that your electric fan is NOT operating at all. Under normal conditions, just going down the highway, your cooling system will function just fine without a fan running. The air flow through the radiator is adequate to keep things cool. However, when you stop, you quickly get into an "overheat" situation. Actually, you should be able to hear your fan begin operating when your engine temperature starts climbing or your air conditioner requires the fan to do its thing. Note: If you've ever severely overheated your engine, your problems may be worse than just a fan not running, but you really do need to confirm whether your fan is operating correctly, or not. Another note: I had a vehicle with a tendency to overheat when stopped. It turned out to be a faulty (leaking) pressure cap on the cooling system.

Nov 04, 2013 | BMW 525 Cars & Trucks

2 Answers

My 93 saturn sl1 is overheating. Could my thermostat be bad?


It could definitely be the thermostat. It is a cheap part to replace. If the car overheats while running down the road (not stop and go traffic), then it is almost certainly the thermostat.

Aug 18, 2010 | Saturn SL1 Cars & Trucks

3 Answers

My 2000 Jeep Grand Cherokee overheats in traffic


Check the fuse for the fan and use a test light to make sure that the circuit is functioning. Warm up your car then feel along the top and bottom of the radiator to check for cold spots. If you find any then you may need to replace your radiator. If your heater isn't currently working it may be that since it is a part of your cooling system.

Apr 29, 2010 | 2000 Jeep Grand Cherokee

1 Answer

It really does overheat a lot when in traffic.


You need to check youe water pump, thermostat and your radiator cap and if all of that is good it sounds like a blown headgasket.

Mar 08, 2010 | 1990 Toyota Corolla

2 Answers

91 toyota camry overheating problem


So far you did the right things in the right order. If you have a pressure cap (looks like a radiator cap to the rear side of the engine. Dealer $15) change the pressure cap also and then flush the radiator. A sure sign of blockage is when you open the radiator look around inside the top if you see brown or green kind of gunky stuff. Flush the radiator anyway.
If after the radiator is flushed and you still overheat, the next posibility is the head gasket. But don,t worry yet, follow these steps and observations. (this goes for 93 camry V6 also, I have one)

  1. change radiator cap and pressure cap where applicable
  2. Change the thermostat.
  3. Some cars may have a thermo switch which ramps up the fan(double fan designs). Change that if applicable.
  4. flush the radiator and engine block
  5. change waterpump AND headgasket.
The temperature guage can tell you what you need to know.
  1. If the guage starts to spike up after stopping, pausing in traffic or while in gear not moving but it is fine while driving along the highway, then you are having a blockage in the cooling system. FLUSH SYSTEM.
  2. if there is a bubbling sound in the engine when you turn it off, FLUSH SYSTEM
  3. If the car overheats at anytime, anywhere and it drinks coolant like a fish, then you my friend have a headgasket problem. Change waterpump and head together

May 03, 2009 | 1991 Toyota Camry

1 Answer

Overheating on stop and go traffic


I had the same problem on my SL1 2002 and my wifes SL2 2001. In both cases, the electric radiator fan motor needed replacing. It was not difficult but took me a full day of trying to figure out how to pull the plastic housing it is mounted in. Someone who knows what they are doing could have changed it in a half hour. Works great now.

Dec 27, 2008 | 2002 Saturn Sl

Not finding what you are looking for?
1999 Saturn SL Logo

194 people viewed this question

Ask a Question

Usually answered in minutes!

Top Saturn Experts

yadayada
yadayada

Level 3 Expert

60792 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

Are you a Saturn Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...