Will it fit a 2004 mercury Grand marquis. I understand that it can be used upstream or downstream. is this true? Also will I need to order 4 units
921845
You got 4 sensors and every sensor is a different part number so you would need each individual sensor in the wright place or your check engine light will go on. Hope this helps.
1138872
It fit my 1998 Pontiac Grand Prix. You don't hane to do both but you have to get the right one they are upstream before the converter or downstre after convert they are the same for most manufacturer but wire length and connection is different
310570
Have no idea. I took the unit apart and removed the rubber ring. Now it flows real GOOD!
1150769
OK, I do see slight differences in the 2nd and 4th images. Maybe different angles, and some difference in the gaskets shown, possibly not the same manifold in both images. I can tell you that I used this manifold on my 2000 Crown Vic, so I do not have the PI (Performance Improved) heads, with the slightly bigger and more square ports. A 2003 or later engine would have PI heads and want a different manifold. But this one worked great for my car.
1874462
No, this is the downstream one (after pre cat). It's also a pain in the ass to install, spend the exrtra and get the one with the pre-fit plug.
1506594
Hi Roger, it doesn't matter what transmission you use, you need a compatible intake manifold. A four barrel square bore intake. There may be a vacuum line from your AT to the carb, just take careful note of all your connections - pictures are really helpful so you don't forget where things go,-or get the service manual for your car and follow the instructions. It's a good carb.
2264099
this should work with 5/8 fuel line if using correct fittings, however it do not think the flow will be sufficient for a system using 5/8 fuel line thank youcharlie
2054673
I installed it on my Grand Marquis 2004 GS last year and have had no problems. However, I would check with Ford about Customer Satisfaction Program 14N01 which came out in April, 2014 covering the defective LCM. Your unit may be covered.
1412829
I installed mine on a 1999 Mercury Marquis with the 4.6 and it worked slicker than snot.
1312496
Nope- if you drive a 2005 rsx 2.5L try the 234-4354 for downstream or 234-9064 for upstream
1617992
This will not fit your car. Do you need an upstream or downstream sensor? Manual or automatic transmission? California or not?
344931
One model was for upstream other was for downstream. I don't remember which was which but do know I had two different models
2180299
I can only say that this worked for my 1999 Pontiac Grand Prix. Check the number against the application chart. I still had to have the seller change out 3 units to find the ones that would function properly.
1360397
You would have to change the intake manifold to an aftermarket 4bbl piece, and the distributor also needs to be changed to a non computer controlled unit.
1190591
Hello! Yes... you need 4 units as they dont come in pair. And depending on where you live I still have the whole kit (Front+rear... Pads and rotors) as I changed my car and never got to install them. It fits Subaru Legacy and Outback... 2010 to now. Let me know if interested... LL
698141
This includes only a single cone filter, single heat shield, and a single mounting bracket.I have it installed on my rev up motor (2006). If you have the HR motor with 2 intakes then I would think yes you need to order 2. I don't know how the fitment for the HR motor would be with the heat shield and mounting bracket though. I think they're pre fit to work only for the single intakes?
1283264
On my 03 CR-V, they are different, since I only replaced the upstream, I can't really say a lot about the downstream