Question about 1994 Pontiac Grand Am

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Looking for where the cooling fan relay is on a 93 grandam 2.3 shoc quad 4

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Should be on the passenger side just aft of the strut tower. there is like a pack of 4 relays jamed in there look at the color of the wires going into the fan 1 shoud be black the other is blue I think. then look for the relay with the blue (or whatever color is on your fan) that should be the one. hope this helps

Posted on Jun 21, 2009

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2 Answers

Where is the cooling fan relay located


In the engine compartment fuse block. Look at positions 7 and 8. There should be a diagram under the lid.

Apr 18, 2016 | 1999 Oldsmobile Aurora

2 Answers

FANS WONT COME ON ,,ALL FUSES,RELAYS AND ELECTRIC FAN MOTORS ARE NEW,,THERMOSTAT IS GOOD,,WHERE IS ELECTRIC FAN TEMP SENSOR LOCATION


op
why not post symptoms first and not a barrage of parts.
must we decode that to a symptom,. kinda hard right.

I will not guess. what is wrong, nor what is not working on your car. now what fans you are talking about, up to 4 fans on cars.

cab blower fan (wild guess blower is ok) and so is HVAC, ?
radiator fans
Condenser fan.

my wild guess to , engine over heats?????????
if yes, the scan it first. no not last FIRST.
it dont work like you think its not a 1988 Samurai.
sorry,
on modern cars, they got smarter, the engine goes
gee the PCM knows water temp why have a fan temp regulator.
hark , now it dont. (saves cash on useless parts)
but has a relay , (well until you have my car and the relay is now 100% electronic, called a huge transistor)
we've used this tech in industry for years, but car makers just learning how still.
i digress. but evolution and history helps diagnosis.
what is there?

Ill look for you, ive posted this 100s of times
the book is 4 bucks to see online. the real deal
lets look now.
XL-7 (the dash matters big time)
answering for , overheats engine, and fans on RAD dead.
(some are staged, PCM brains... now. and also chain ops based on if A/C is on or not) facts.
first I see 2 fans... ok.
the next page shows nice block diagram of the fan system
yup, NOT Simple.

ill post those words for you.
"The engine cooling fan system consists of 2 electrical cooling fans and 3 fan relays. The relays are arranged in a series/parallel configuration that allows the engine control module (ECM) to operate both fans together at low or high speeds. The cooling fans receive positive voltage from the cooling fan relays which receive battery positive voltage from the underhood fuse block.
During low speed operation, the ECM supplies the ground path for the low speed cooling fan relay which is fan 1 relay through the low speed cooling fan relay control circuit. This energizes the low speed fan relay coil, closes the relay contacts, and supplies battery positive voltage from the fan 1 fuse through the cooling fan motor supply voltage circuit to the left cooling fan. The ground path for the left cooling fan is through the series/parallel relay which is fan 2 relay, and the right cooling fan. The result is a series circuit with both fans running at low speed.
During high speed operation the ECM supplies the ground path for the low speed fan relay through the low speed cooling fan relay control circuit. The ECM grounds the high speed fan relay, which is fan 3 relay, and the series/parallel relay, which is fan 2 relay through the high speed cooling fan relay control circuit. This energizes the series/parallel relay coil, closes the relay contacts, and provides a ground path for the left cooling fan. At the same time the high speed fan relay coil is energized closing the relay contacts and provides battery positive voltage from the fan 2 fuse 1 on the cooling fan motor supply voltage circuit to the right cooling fan. During high speed fan operation, both engine cooling fans have their own ground path. The result is a parallel circuit with both fans running at high speed.
When the request for fan activation is withdrawn, the fan may not turn OFF until the ignition switch is moved to the OFF position or the vehicle speed exceeds approximately 16 km/h (10 mph). This is to prevent a fan from cycling ON and OFF excessively at idle.
end quote.

i bet you didnt scan it , like 99.9 % of all posters here dont.
DTC Descriptors
DTC P0480: Cooling Fan Relay 1 Control Circuit
DTC P0481: Cooling Fan Relay 2 Control Circuit
DTC P0691: Cooling Fan Relay 1 Control Circuit Low Voltage
DTC P0692: Cooling Fan Relay 1 Control Circuit High Voltage
DTC P0693: Cooling Fan Relay 2 Control Circuit Low Voltage
DTC P0694: Cooling Fan Relay 2 Control Circuit High Voltage
Diagnostic Fault Information

is the ECT showing overheat, yes no?
if yes, it must operate a fan or 2.
the book even covers all tests for fans dead, in a large truth table.
both the FSM and alldata.com have that, its no secret ,its published in 4 major places.

lets back up
if the engine coolant is low (no that side tank the engine and rad)
the ECT will lie. if that happens the fans may not come one
that is because the ECT is useless measuring air, for water.
that water must touch ECT for ECT to work.
this is FIRST
then scan the ECT does it show overheating, IT must if it IS overheating. fix that next if it lies to you,(IR gun in hand)

The system has staged fans.
i cant find the trip points in my crappyy online pages.
but is like 225f then 250f trips. is my guess...
about. if the engine over heats, check fuses first then scan it.
it will simply tell you why its bad.
eg, fan1 output dead.
or if you hot wire a fan and its dead, then it is.
(only on cars with non modulated fans,,hot wire them,else not.)

now the link to the 4 buck real book.
the non dash XL7 (my guess) you this pick yourself... cant see car.
https://suzukipitstopplus.com/Products/10182-2007-xl7-service-manual.aspx

this is how it really works
the ECU has software that decide trip points for fans.
hard coded, this is. based on how hot it is and if A/C is on not.
its way smarter than 1988 and better.
the DTC errors can see an open line, shorted to ground or stuck 12v.(runs all time error)
(tells you relay is good or not)

25839272-0kjd5huq4lpr130nt243wle5-3-0.jpg no scanner no joy , sorry, tis a fact.....

25839272-0kjd5huq4lpr130nt243wle5-3-2.jpg

Aug 27, 2015 | 2007 Suzuki XL-7

1 Answer

Where is the cooling fan relay on a 93 acura integra


there are 2. the main one for the driver's side, is right next to the radiator on the driver's side. The other fan is for the A/C. It's relay is on the OTHER side of the radiator.

Jan 29, 2013 | 1991 Acura Integra Hatchback

1 Answer

I'm working on a 93 olds acheiva and the fuel pump


From the fuel system troubleshooting guide - 1993 Oldsmobile Achieva

Inspect Fuel Pump Low Fuel Pressure.
Inspect Fuel Pump Relay - Faulty Fuel Pump Relay.
Inspect Fuel Injector Pressure Regulator - Faulty Fuel Injector Pressure Regulator.
Inspect Fuel Pump Strainer - Clogged or Dirty Fuel Pump Strainer.
Inspect Engine Control Computer - Incorrect Operating Information Being Delivered and Sent From The EEC.
Inspect Fuel Tank - Fuel Tank Empty.
Inspect Fuel Line - Fuel Line leaky/kinked/loose/disconnected
Inspect Fuel Fittings/banjo bolt(s) - leaky/loose fitting(s)

For your next posting, in 1993, Oldsmobile produced the Achieva with four engine types:
Available engines To find the engine type of your 93 Achieva, compare the 8th digit of your VIN code to the entries in the above table.

Nov 04, 2011 | 1993 Oldsmobile Achieva

1 Answer

2000 impala cooling fan relays


Hi!!
I you are looking for the cooling fan relays, they are located on the Power Distribution Box on the engine compartment, close to the battery. They should be labeled Cooling Fan 1 and 2.
Good Luck! A HELPFUL - 4 THUMBS - rating for this solution would be greatly appreciated. Thank you for using FixYa.

Jan 09, 2011 | 2000 Chevrolet Impala

1 Answer

I need to know if the cooling fan has a relay or just a fuse? What is the amp required for 93 Taurus cooling fan?


Both, but the relay is incorporated in the constant control relay module. There is a 50 amp fuse for the fan. See diagram below.

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Sep 17, 2010 | Ford Taurus Cars & Trucks

4 Answers

HAVE CODE 26--CHECK RESISTANCE ON INJECTORS, EGR SOLINOID & PURGE SOLINLID--REPLACE PCM. STILL HAVE SAME PROBLEM. CAN YOU HELP? LARRY


There's a lot of information regarding your problem here:

http://www.saturnfans.com/forums/showthread.php?t=284

My suggestion would be to contact a local dealer and have them run the diagnostic (usually under $100), then if the part is easily replaceable, do it yourself. If it's more involved, then bargain with the dealer on a good price to have the problem fixed.

I truly hope that the Quad Driver itself isn't what's causing the code.

Nov 02, 2009 | 1993 Saturn SL2

1 Answer

Where is the 1996 GrandAm with a 3.1 liter engine


look under the hood and on the left side in the far back there should be a few switches. to help you locate it..look for a green "square" fuse looking box. THATS NOT IT! the same shaped box but black is the relay switch. look by the wiper blades area.

Sep 28, 2009 | 1996 Pontiac Grand Am

1 Answer

I put a 95 Grand Am Quad 4 dual overhead cam in a 93 GrandAm with a quad 4 single overhead cam in it can I change the wire harness and make it work.


Sometimes the manufacturers use the same main harness for multiple vehicles. Check part number with dealer on both harnesses. If they are the same, likely you will only need to change the engine harness & computers.

Apr 30, 2009 | Pontiac Grand Am Cars & Trucks

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