Originally Posted by Johngpflynn
thanks for response.
Firstly to peer down and check the linkage can I do this without going through the DIY PDF? will it be obvious from looking in, as to be honest when you pull out the elephant hose all you can see is the top of the swirl motor? so I am not sure what I am looking at. I read the DIY PDF and I am not sure I have the expertise to do this whole fix.
For note: the original mechanic said the clips had broken on both occasions, but was unwilling to fix twice.
Do you think he actually broke the linkage to the manifold too?
And if he did do this would that not have triggered the P2008 code already?
Or are you saying the resistor mod, forces the swirl flaps open and because the linkage to the manifold may be broken it is not keeping all flaps open at once.
Also another thing , what is the danger of driving around with this code? from that link, it mentions the main issue being your actual flaps falling into the engine.
First.... I doubt your flaps will fall into the engine....that was on a different car.
2. The resistor mod stops the swirl motor from operating and tells the computer to pretend that it is working. The motor is spring loaded and always return to the open position...full throw. The passenger side arm of the SM moves toward the front of the jeep while the driver side arm of the SM moves toward the back. So.... IF
your clips and linkage are connected properly, then the flaps are held solidly in the open position...and that is good. BUT
if your clips and linkage are not connected or are broken, then there is nothing holding the flaps in position.... if this is the case I can only guess what they will do.... maybe air flow will hold them open. Maybe it is no problem at all....don't know. My guess
and it is a guess, is that if one side is open and the other closed then there would be an unbalanced air flow that another sensor may detect and that might set off the code. If you want to eliminate this as a possibility, then you may want to assure that the flaps are open....tie them down if necesssary.... but re-connecting the linkage would be best then the spring in the SM would hold them open.... and since the SM is unplugged, they wil never move.
>>Do you think he actually broke the linkage to the manifold too?
This is a possibility, only way to be sure is to feel around there and check.... you can't really see all the linkage. Even if broken, you may be able to tie or jamb them into the open position...Passenger side forward, driver side backward. Its all very fragile, an engineering blunder.
The best way to SEE the swirl motor is to remove the fuel filter...it is under the filter. You can't really see the whole SM because the view is blocked. With the filter removed, you can FEEL down there. You can find each end of the SM, then find the linkage. Work the linkage with your hand on both sides. It should work easily. You should be able to tell if it is broken.
If you have small hands and a good flashlight maybe you can do this without removing the fuel filter. The SM is very difficult to remove and install and the Clips for the linkage is difficult to attach... I can understand why they gave up on it. It is difficult.
Unfortunately... if the linkage is broken, the only way to replace it is to replace the whole manifold for each side that is broken....This is even more difficult.... and expensive.... like $900 per side or so.
Once again.... since the SM no longer functions (due to the resistor mod) it is not important that the linkage is connected. It MAY BE
important to assure that the flaps are held in the open position. You can tie them with wire, jamb a ball of tin foil in there, I don't know....be creative. Just remember the passenger side goes forward, driver side backward.
As for the code.... I have never dealt with this one before.... but it sounds like nailing down these swirl flaps to the proper position would at least eliminate that as a possible cause of the code.
Wish I had better news. It is not normal to get that code with the resistor mod or the EHM... so if you have checked for loose wires and hoses and tiny leaks, the problem with the flap position remains a possibility.