Question about 2003 Buick Park Avenue

1 Answer

2003 park Ave running warm. possible bad rad fan relays?

2003 park Ave starting to run warm after 176,000 miles. bought new, so the 203 to 217 degree temp is not typical. no sign of bad water pump, but i think rad fans not working. fuses are good. how to confirm relays working??

Posted by on

  • palansky1 May 22, 2009

    makes sense! thanks, i will try!

×

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 7 Answers

The simplest way to check a relay is to swap it with a relay from somthing that you know works (eg. starter, or horn) if that item still works after the swap then the relay is good.

Posted on May 21, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

Fans not turning on and replaced the coolant temp sensor? Coolant in reserve but not in radiator?


why do you have ? on facts? odd that.
my guess replaced ECT ! not ?
my guess, doing so , now engine is full of air, and not fails.
as all do.
front RAD cooling FANS, right? (not heater blower )
it don't work like you think, ? huh?
what does" not in Rad "mean? with ? marks?

means you trust the silly side tank and not look in rad? fail you will.
when doing cooling service, learn read a book first.
read how to fill and burp your engine, Just like feeding a baby it is.
is engine overheating?
did it , has it, or ? , what started this saga, tell a full story?
and WIN !
Facts: on this system.
the fans are controlled by the computer brain, under a complex set rules now. it's not some mindless switch like days of old.
sorry!
ill now answer for USA 03, how ours work,
ONLY!
ours has one fan., (not fans)
ours has a 3 speed fan (at rad back side.)
and has rules to run all 3 speeds, via 3 relays
the PCM/ECU decides this, based on if A/C is on or off.
and a complex set of rules (uses the ECT for this magic)
Fact 2: ECT will not work with air pockets !!!!
The PCM even turns on and turn off are not same temp!!!
Rules:
1: Rad must be filled of AF/ 50% antifreeze cold, to the top neck of RAD filler.
2: rad and engine burped of all air pockets, ask it's same on all cars.
3: the ECT must work, right, if air pockets there, it CANT work.
4: park car, idle until the minimum engine time is reached parked.
about 180F, but all cars overheat if parked, idling and fan stays dead.
fan is off , and at some point, the fan goes to low speed.

this varies by engine option, but is around 225F. (stage1)
THE FSM covers these checks, and rules, and temps. for all 3 stages of fan speed.
scan the pcm yet>?
got P0128 DTC? or others, for temperatures wrong,
not scanning is a big mistake on all modern cars.
big time!
yes, rad must be full parked cold, yes, yes, yes...
side expansion tanks do fail. for many reasons. ask.

a 2.0L engine. only, here. 7.4quarts cooling cap.
here is ours. usa fan. a 4 wire fan it is....
the ecu controls it using SOFTWARE, (firm-ware in truth)
26098393-rlcj0qgtvzvpudyok3p1nj5o-4-0.jpg do not drive car until all air is burped out of engine and rad.
DO NOT!
in fact run it idling to hot. 180f. ( too hot to touch long)
, kill engine with key.
let cool, to luke warm, or cold.
check rad level. (sure its low)
top it off, cap it,
repeat 3 times, before driving or if it holds levels.

Feb 17, 2016 | 2003 Suzuki Aerio

1 Answer

Why am i overheating


anon post
no engines option state (no size and cyl. counts)
is the dash toy gauge working right or fibbing.?
i never trust one, i use the nand IR pyro gun for 15 bucks.
the gun can in fact tell you if any RAD tubes are clogged
thermostat not in backwards? and bleed hole up hill?

a bad rad tube will read hot on the feed end and about 50 degrees
less on the other end, if not the tube is clogged. easy huh,
running 50% coolant
no coolant in the engine oil?
no oil in the top of rad neck, or carbon chucks.
signs:?
not getting so hot it pings?
steam out tail pipe end on hot motor and stinks sweet (glycol sweet)?
rad cap works and holds 14psi.? the big rad hoses.when squeezed
will reflect that 14 pound per square inch. super easy test.
no leaks.
no leaks on passengers toes, or to ground or to engine oil pan(milky)
if all that pans out the pump is bad. or belt loose.

one thing not stated.
does it overheat parked and running fast. or both.??????
if only parked the fans are failing.
all engines over heat parked, and in FACT that is the FSM '
test, doing exactly that. you get it warm, then parked
it starts to get hot. then the fans come on,
if not , fix fan(s)
summer answer, not in winter in Alaska.... different answers there.

are the air paths from the grill to the back side of RAD
clean not all parked in dirt bugs and what not?
if the fan cant suck, the RAD will overheat. for sures.




Sep 05, 2014 | 1999 Jeep Wrangler

1 Answer

How would my car run without the radiator fan


bubbling at the RAD cap to the expansion tank is.:
1: overheating, and all cars overheat, parked, running and no fan.
2: blown head gasket. or far worse....
3: bad rad cap, the gasket is bad in side it.

the FSM covers the fan test, read that.
or login to alldata.com and read engine cooling. section.

Feb 08, 2014 | Honda Cars & Trucks

1 Answer

2003 Toyota Celica Rad fan works continuous. Heater is barely blowing warm air I feel like the two problems are connected. The Rad fan comes on as soon as you turn the switch...


Hi S, The fan is not controlled through or by the ECU. I suggest you check the connection to the fan temperature sensor. If it is disconnected the fan will operate. Refit the connector and make sure the connection is making good contact. If the fan continues to run make sure that the relay is not fused and that it is operating correctly. Regards John

Oct 25, 2012 | 2003 Toyota Celica

1 Answer

How much tranmission fluid needed for nissan 2003 altima


in the manual it will tell you in specs but you can put in and run car till it gets warm and check level while adding make sure rad fan comes on that is hot enough with engine running and in park check level if empty should go from 4to 7 and if only changed filter in pan 3to 4 liters

Jan 13, 2011 | 2003 Nissan Altima

2 Answers

P1491 diagnostics code for 2003 Jeep Grand Cherokee



Trouble Code: P1491 You PCM does not sense current to radiator fan when it turns it on. Is the fan coming on or not? Usually not when you have this code. Problem can be with the fuse, relay, wiring or fan itself. First check the fuse. If good, next try swapping the relay with another one in the engine compartment relay box, such as the horn relay.
Let the car warm up and see if the fan will come on. If yes, get a new relay. If not, either use a test light to see if there is voltage at the fan connector when the engine is on and hot, or else test the fan motor by hotwiring it to the battery. If none of this works, please get back to me for how to troubleshoot the wiring.


Radiator Fan Control Relay Circuit Malfunction
Possible Causes:


Radiator fan control relay circuit is open or shorted to ground Radiator fan control relay circuit is open (test power to IGN) Radiator fan control relay is damaged or has failed PCM has failed

Nov 10, 2010 | 2003 Jeep Grand Cherokee

3 Answers

03 grand cherokee, 4.0, rad fan will not run, checked fuses and replaced relay under headlight


Check the coolant temperature switch. You should have 12V on one side of the switch. If you jumper the two wires in the switch connector, your radiator fan should run with the ignition switch on. If it runs, replace the coolant temperature switch.

Feb 06, 2010 | 2003 Jeep Grand Cherokee

1 Answer

2003 dodge caravan radiator fan will not stop running.what is the problem?


Probely a bad relay in the fuse box on the driver side. Theres a map under the fuse box cover to find the RAD FAN relay. There the same as other relays that the van uses. Pull the fan relay & replace with same number thats on the top. Theres also a 40 amp for the fans.

Jan 23, 2010 | 2003 Dodge Caravan

4 Answers

OVER HEATS


Fill over flow bottle right to the top and run engine....watch for bubbles.
If you see bubbles you may have a bad head gasket or a possibly a cracked head.

This allows combustion gases into the cooling system and the system just can't dump that amount of added heat.

Aug 19, 2009 | 1999 Chevrolet Malibu

1 Answer

1991 buick park ave. after warm, headlights won't shut off


It's probably a malfunctioning lighting control module .The daytime running lamps are controlled by the (LCM) also , by suppling B+ voltage through a resistor to the low beam headlamp circuit after the dimmer switch . Looking at a wiring diagram help's determine as to possible problem's . Not guessing ! Free wiring diagram here
http://www.bbbind.com/free_tsb.html Enter vehicle info. Year , make , model and engine size . Under system click on lighting ,then under subsystem click on headlamps . Click the search button then the blue link. If you look at the diagram you will see everything is connected to the (LCM) . Rather then replacing a bunch of parts ( that still may not fix it ) Your best bet ,take it to a qualified repair shop.

Sep 29, 2017 | 1992 Buick Park Avenue

Not finding what you are looking for?
2003 Buick Park Avenue Logo

Related Topics:

195 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts

yadayada
yadayada

Level 3 Expert

76848 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

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

Answer questions

Manuals & User Guides

Loading...