I changed the themostat and flushed the system and got a small difference. I was thinking about changing the heater core next. I was told that it could be the Coolant Temperature Sensor or the Temperature Switch/Sender. Does any body have any ideas.
2006-10-14 07:00:33 · 7 answers · asked by Step58 1 in Cars & Transportation ➔ Car Makes ➔ Mercury
Whoever told you it could be the ECT or temp sender is full of s***. And the a****** who is advising you never to take it to the dealership for anything other than warranty work are, the kinds of people that dealerships love. The kind that screw up an attempted "repair" which ends up costing them DOUBLE or even TRIPLE what it would've cost, had the vehicle been taken to the dealer in the first place!!! That is a load off crap about what he said including that he owned a repair shop and never cheated a costumer. In answer to your question, there are TWO TSBs (technical service bulletins) that come to mind. The Ford TSB numbers are as follows: 01-11-6 regarding discoloured or "brown" coolant. This has been a VERY common concern on '96 to '99 Tauruses and Sables. The other TSB article number 02-23-6 pertains to replacing the temperature blend door with an updated part. To the people out who think that dealerships are EXPENSIVE, think about it for a minute. The flip side of things, is when a car comes rolling in with a "check engine" light on that some small "garage" misdiagnosed and replaced an unecessary part like an EGR valve, instead of replacing the DPFE sensor (which most "mechanics" unfamiliar with Ford don't even have a f****** clue what a DPFE sensor is), or cleaning out the EGR passages in the first place, the poor sucker who owns the car ends up being the one that suffers. I could think of MANY examples of "Ma & Pa's garage" screwups that the dealer has had to fix, but there's not enough space to go on. Anyway, please DO NOT hesitate to ask, if you have any further questions. Hope this helps.
2006-10-14 09:00:13 · answer #1 · answered by Anonymous · 0⤊ 0⤋
First, don't flush cooling systems!! All you are doing is loosening debris so it can plug your radiator, heater core etc. and make bucks for any shop that does it. If you have a overheating problem go to a Radiator Shop and have them check it. I am in doubt there is an honest, well trained mechanic out there. They look at you like " Hey, don't ask me those questions I can't answer". Like "what's wrong with my heater"
First, is your temp. gauge at normal temp. ? If so it's not the cooling system.
Second, are you getting full air flow with fan where you would normally set it? Speed it up and see if flow increases. If not then you have an air flow problem, not heater core.
Third, check the valve on the heater hose, you should find it at a point close to where the hose enters the heater. This valve is usually vacuum actuated and I would highly suspect it on a car of 98 vintage.
Third, NEVER go to a dealer, except for warranty work.
Fourth, make sure your "mechanic" is ASE certified. Doesn't guarantee he is good, just that he had to be trained enough to pass a written test.
THET DW has the best answer
2006-10-14 07:50:43 · answer #2 · answered by tronary 7 · 0⤊ 1⤋
It might be a control door on the plenum that allows the air into and out of the heater case. Does it blow warm at all. Does it take forever to heat up? Does it cool down as you drive? Are you loosing coolant? I would start with an inspection of and in the heater case. I had the same prob in my caddy. It was the thermo though. I just fixed the heater core on an 86 f250 and both the core was leaking( fixed by soldering) and the mounting plate that the controls for the air blend door on the heater case had come loose.
2006-10-14 07:09:23 · answer #3 · answered by drunkknucklehead 2 · 0⤊ 0⤋
If this mercury has the automatic temperature control system then you had better take it to the dealer for service. ASE mechanics and others just don't know about the advance systems on newer cars and they don't know all about all the different model cars out there but a ford mechanic knows fords much better then any other ASE certified mechanic. Sure sometimes it cost more but sometimes its really worth it.
2006-10-17 18:13:55 · answer #4 · answered by Anonymous · 0⤊ 0⤋
There are many things that could be causing your problem.You listed 2 of them.Others could be faulty blend doors,weak water pump,or possibly just dirt or leaves blocking fresh air flow.In my opinion you took the correct first step.You should take it now to a reputable shop and have it diagnosed to pinpoint the rest of the problem,unless youi have the equipment to do the diagnosis your self.You will save money and time over continuing to throw parts at it in hopes of finding the problem.
2006-10-14 07:16:02 · answer #5 · answered by thetdw 4 · 0⤊ 0⤋
attempt a reflush and this time use PRESTONE anti-freez and fill with DISTILLED water you're scuffling with a foul water source with iron deposits in it , no longer undesirable for people yet makes coolant water turn brown faster. p.s. there's a attempt to work out in case your head gasket is leaking, Any strong shop must have the try.
2016-10-16 04:55:34 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Sounds like the air blend door is broke or stuck. You will need to have it serviced.
2006-10-14 10:59:43 · answer #7 · answered by Josh S 7 · 1⤊ 0⤋