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Vans & Minivans Nissan Quest Nissan Quest Radiator/Coolant System
17 messages, Last post on Nov 02, 2008 at 4:57 AM
You are in the Nissan Quest Forum. Your Host is Karens
My 98 Mercury Villager had little warm air coming out of the heater and the engine never got into the normal zone on the gauge. Always stayed cold. A friend suggested I change the thermostat because it might be stuck open. I removed all the wires and upper radiator hose to get to the thermostat housing. Got it installed and hooked everything back up. Now my "check engine" light comes on, the radiator fan immediatly comes on right after I start it and it overheats. What's up??
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Replying to: bjbosco (Dec 12, 2006 5:05 am) I believe that I raised the overflow tank higher than the rest of the engine & filled the coolant from there to force all the air out from the bleed hole. Check Steve Cutchen's Villager site link for one possible method. I'd caution against removing the radiator air relief plug as other sites have said it sometimes cracks. David |
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| I need a throttle body for a 97 Mercury VIllager I have searched many placec and sites for this damned thing and have had NO success is there anyone out therre who can help me I need the throttle body because my is corroding out and may break when they fix my solenoid. The solenoid needs to be replaced to pass inspection It has sometning to do with emissions PLEASE help stumped in Easthampton | |
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My 99 Mercury Villager has a slight coolant leak. I appears to be coming from somewhere under the intake. There is a tube that connects to the radiator hose and runs under the intake. Not sure if the tube is leaking. I took it to a shop and they said the tube costs ~$400. Wow. Not sure what to do. Any suggestions? Thanks, Carl
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Replying to: cmik (Jun 20, 2007 5:34 pm) This thread may help but it sounds like a different hose than what you are describing: motonation, "Nissan Quest/Mercury Villager problems" #2158, 22 Nov 2005 7:18 pm Steve, visiting host (and '99 Quest owner) |
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Replying to: cmik (Jun 20, 2007 5:34 pm)
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Replying to: dtownfb (Jun 21, 2007 9:42 am) Thanks, Carl
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Replying to: cmik (Jun 21, 2007 4:20 pm) Steve, visiting host |
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Replying to: cmik (Jun 21, 2007 4:20 pm) take time and do it, it save you money. my 95 quest has 235000 miles and it was hit by the strom KATRINA in 08-29-2005 in New Orleans, I am now in LAS VEGAS.
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Replying to: haivanle (Aug 05, 2007 10:39 am) Sorry for the long post, but it has the 'Fix' too: 9/16/07: I hope some one can help me also whith an issue that I have with my 2000 Nissan Quest GXE. I've had it since Oct 2003 when it had only 52K miles on it. Now it has about 113K miles. Recently, I had my Radiator fan ON all the time while the car/engine is on. Intially, when the problem surfaced, I had a 'plastic burning' smell inside my car. Found a 'burnt' fan relay in the fuse box. Had the computer scanned and the following code came up: P0325 which according to the computer, it is a 'knock sensor issue'. Now, a mechanic I know told me it would take about 5.2 hours of labor and about $190 for parts. Does this make sense? I mean, the 'knock sensor issue' causing my fan relay to burn and the radiator fan to be on all the time. Now he told me that the Radiator fan being on all the time is not a big issue, but that I should change the sensor. What do you think? 9/10/07: Hi, Here is an update on what I've done so far, but it hasn't been fixed yet. I decided to troubleshoot this issue. From reading here in the web, I learned that this is supposed to be a 2-speed fan (Hi and Lo). Also, I looked at the relay box and learned that 2 relays are for the 'Hi' and one of these was the one the burnt. Also, none of the cables/wires are burned. Any ways, I have installed 2 good relays here and the fan still on. These relays are 'normally open' until 12v are applied. So when I check the car, as soon as I turn the key to the 'accessories' ON, I measure 12 volts at the inputs of the relays and so the fan is suppossed to be on because it closes/completes the circuit. This isn't normal as the car is cool because it was parked all night. So, this tells that something is sending the signal to always turn the fan on. So, the first thing I supected and changed was the 'water temperature sensor'. This did not fix it. I went ahead and replaced the entire radiator fan assembly. This did not fix the problem. I spent about $300 for this so far. Now, I talked to my mechanic and we learned that the ECM is what controls the radiator fan, among other things like the AC and engine speed; on this 2000 Nissan Quest. So now he recommends replacing the ECM on this car and says that the part will be very expensive - about $700 bucks. He suggested I find a used one somewhere and he will replace it for me. So here I go. I will hunt one of these down and see what happens... Will update later. 9/12/07: Hi, So, I finally had my 2000 Nissan Quest scanned by the Nissan Dealer in my area. They charge $135.00 just for scanning the computer (ECM) and reflashing it if it needs it. I told them about the issue I am having with my car and about the parts that I have already replaced. They didn't find anything with the scan and told me that the computer was not sending any codes. So, they looked at all the wiring that leads to the ECM and said that there was a 'short' somewhere. When they verified that all the wires were OK, they went ahead and removed the ECM. They opened the ECM and found two burn wires/contacts. They then told me that for sure the ECM needs to be replaced. They gave me a quote fro $1,500.77 just for the new ECM. I was very shocked. So I told them 'No thanks' and asked them to put my car back together. The car is now back with me and it still has the radiator fan issue. So, I did a search on the web and found a 'used parts' site where you can request any auto parts and they send your request all over to see if anyone is selling it. I got back 10 emails from several places that say they have my ECM. The cheapest is $150.00 to the most expensive of $499.00. I opted to buy it from a place in Sacramento California for about $175.00 with a 6-month warranty. It is called sunrisenissan.net and they specialize in selling used nissan (and Kia) parts. Well, let's see how this turns out. I will post once I get the part replaced/installed. 10/01/07: Hi, Just came back to inform everyone that my "Radiator Fan Issue" has been fixed. From my previous post, I/we narrowed it down to the ECM. I received the part about 10 days ago and I finally had a chance to change it this weekend. The one thing that the 'salvage' place told me was that it might need to be reprogrammed. But that's fine. I was more worried about getting the correct part. This is why: The dealer will give you a part number which really is not the same part number on the ECM it self. Most places that sell these 'used' ECMs want the part number that's on the ECM to match it 100%. I didn't know what this number was except that it starts with: MECM-XXX-XXX. So that's why I felt I took a chance ordering the used ECM without knowing the part number. Any ways, because I didn't know where exactly the ECM in the car was, I asked my mechanic about it. He told me it was under the dashboard, almost to the left of the front-passanger airbag. I told him I wanted to see the Original ECM in my car so that I can compare the part number with the used one. When I got home, I took the glove box and some other 'pannels' off to see if I could see or access the ECM. I was able to see it, but could NOT see the numbers. So, I decided to remove it my self. Note, you must remove a metal bar that sits infront of it. It's not hard. Once you do that, there are only 2 screws holding the ECM to the car. Once you unscrew these 2 screws, you have to unscrew the one screw that holds the connector (and wires) to the ECM. Once the connector is out of the way, you have to 'wiggle' the ECM and pull it out at an angle (with its rear lifted up and its front pulled down). Since I got it out, I compared the part numbers and most numbers matched. Only 4 numbers, which were at the end of the sequence, did not match. (I don't have those numbers with me but I have them in my car. I will post them when I get them). So I decided to try/install this used ECM to see, not only if it fixed my problem, but if my car would start. Once I screwed the connector on, I tried it by turning the 'accessories' ON. It worked. The Fan would not come on at all. I then turned the ignition/car ON and it did start fine. The engine ran good. So, I decided to leave the used ECM in and put everything else back together. I drove my car for a few miles and it ran fine. The radiator FAN problem was definitely fixed. I then took a 150 mile trip and the car ran great. It is still running great. The radiator fan is working the way it should. It turns ON only when the water temperature rises. Here is the Part Number that’s on the ECM: Original P/N:(Went bad -wires Radiator Fan 'ON' burnt inside ECM): _______PPZ_________ _______YFCD________ Used P/N(bought from Salvage place - now installed and works good): ______PPZ_________ ______YFCD________ MECM-C716 A1 0609 Notice that the last 4 characters are different (9Z09 vs 0609). In my case, this didn't matter as my problem was fixed and m
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