Sometimes the passenger side will not make a full pass, sometimes it will slam down into the cowl, other times it will work perfectly. There appears to be nothing obviously wrong with it, although i'm not a mechanic (not anywhere close). any thoughts
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I had the same problem with my 2001 Mercury Marquis, but it wasn't the heater core, it was the compartment for the condensate drain for the air conditioning and the compartment to catch the rain water that comes down the windshield and drains through the windshield wiper cowling. You have to take off windshield wiper on passenger side and cowling underneath the wiper of the passenger side and you will see a screen over in the corner and that's where the box is for the drain. so much trash was down in there that the flapper wouldn't open to let the water out. Ours only leaked when it rained, but it looked like it could have been the heater core. Good luck.
You can sometimes (if you have 2 elbows on each arm) reach around the back of the intake manifold and replace the coil pack using a 1/4 inch rachet with a 7mm socket.
Most of the time you need to remove the plastic cowl assembly located under the windshield wipers. To do this remove both wiper arms by lifting the plastic covers at the bottom of each wiper arm. Remove the 15mm nuts that hold the wiper arms down and wiggle the arms while pulling upwards until they come off (take note of which is left and right, they are different sizes). Next remove the plastic phillips screws/ plastic rivets that hold the cowl down on the bottom towards the engine(the screw comes up half way and when you pull up the base/ rivet comes up with it).
Next pull up on the cowl where it meets the windshield left or right side and you will hear the retainers snap and release. Continue pulling until the cowl is loose. Next disconnect the hoses that go to the washer nozzles. Put the cowl aside.
Next remove the micron filter located on the passengers side of the cowl (if it has one it is a good time to replace it). Remove from left to right 8or 9 8mm bolts that hold the lower cowl down. On the drivers side disconnect the 8 pin connector for the wiper motor. Now disconnect the washer fluid hose that goes thru the cowl on the passengers side. Lift up on the cowl and you should be able to wiggle it out and set it aside. You can now see the coil pack behind the intake manifold. Take note of spark plug wire location on the coil pack because they have to go back on in the same order.. Reassemble in reverse order. Note that while the cowl is off it is a great time to replace the spark plugs on the back of the engine.
Good luck to you and congratulations for doing it yourself
the wiper arm could need to be replaced
being loose could have have worn the hole in the wiper arm
or the splines on the wiper transmission maybe damaged
i would try a new wiper arm first
use BLUE LOCTITE on the threads and TORQUE the nut to (22 lb ft)
hope this helps
On the impala, just below the windshield on the passenger side you'll see the black cowl that covers the lower portion of the windshield. You'll need to turn on the wipers and stop them in the straight up position, then raise the hood. Remove the weatherstrip just below the cowl, as well as the washer fluid lines. You'll need a flathead screwdriver to remove the 3 fittings holding the cowl down. Once the cowl is removed you'll see the cabin filter tucked under. Then it's as easy as removing, reinstalling and putting the cowl, weatherstrip, and washer lines back in place. Also, it's common on the Impalas for a small peice of weatherstrip underneath the cowl to fall off. This can cause rainwater to leak into the passenger compartment so be sure to secure it back on the metal lip just above the filter. If it won't stay you may need to use some sort of RTV gasket silicone to secure it. That's about all there is to it....
Water is probably from the fresh air intake located just under the right plastic cowl (lower windshield reveal molding). We see this often in our shop. To access the fresh air intake, remove the right windshield wiper and then remove the screws fastening the cowl to the car body. Remove the right cowl. Just above the rectangle shaped fresh air intake (& cabin filter) should be a bulb shaped strip (approx 12" long). All too often, this strip comes off and no longer diverts water. Glue the strip back onto the firewall above the fresh air intake using weatherstrip adhesive. Reattach parts that you removed and now the water should be diverted to either (or both) side(s) of the cabin filter. Good luck
We see this often. There is a rubber bulb type molding (similar to a door or trunk seal) that is approximately 12" attached just above the fresh air intake that's in the firewall on the passenger side. Quite often this rubber part comes off and water is no longer diverted and instead pours directly through your cabin filter (if you have one) and into the right floorboard. To correct it, remove the right windshield wiper and right side of the lower windshield reveal molding (plastic cowling). Apply weatherstrip adhesive into the "U" shaped molding and re-apply into place directly above the cabin filter and fresh air intake. Replace the cowling and wiper. Good luck
I just solved this problem last night with my '05 Impala, and ultimately the solution was what newton5083 stated above. Yet, it may also be this (I found it online somewhere):
You have bent or broken the "park tab" on the windshield wiper motor bracket. The correct way to fix this is to remove the wiper arms, wiper linkage and wiper motor from the wiper motor bracket, and install a new bracket. I just bent the tab back into place a couple times for our daughters 2005 Impala but it kept getting bent down again when they didn't take the time to make sure the wipers were not frozen to the windshield, or tried running the wipers to remove heavy snow on the windshield. So yesterday I fabricated a small piece of metal and bolted that to the bracket in the same place the tab stop was. If someone wants to access this bracket and tab- 1. Use a ½ inch or 13mm socket & ratchet or wrench to remove nuts on wiper arms. 2. They may make a special tool to remove the arms, I used a screwdriver and hammer to tap bottom of the arm to wedge them apart from the spindle. 3. Two small button-looking clips hold the drivers side cowl cover in place under the windshield. These are two-piece clips, pry up the center, than the outer piece. 4. Unclip the washer hose from cowl cover, than pull out plastic cover. 5. There is a smaller plastic cover with on plastic button head holding that cover in place. Gently pry under that clip to remove that cover. 6. Now you can see the wiper trans and bracket. You should see a small tab on that bracket that looks pushed down and bent or possible a square small hole with some torn off metal where the tab broke off. 7. Remove small plastic cover over the wiper transmission and you can see a small spring-loaded arm underneath the wiper transmission assembly. 8. You need to find something to pry that tab back up so when the wipers are running that spring loaded little arm just snaps past the tab running clockwise. It's when you shut off the wipers that the wiper transmission assembly reverses rotation counter clockwise and the small spring loaded arm underneath hits that tab stop, than the wipers will go all the way down and shut off as they should. Once that tab stop gets bent out of the way the little spring loaded arm has nothing to stop the wiper transmission assembly so it keeps traveling counter clockwise until some other stop shuts the wipers off straight up on the windshield.
There is a revised bracket part # which is supposed to be more durable, GM part #12368639. Here is a copy of the TSB which points out this problem: Bulletin No.: 05-08-43-003A Date: March 10, 2005 TECHNICAL Subject: Windshield Wipers Park in Up Position (Replace Windshield Wiper Motor Bracket) Models: 2005 Chevrolet Impala, Monte Carlo Supercede: This bulletin is being revised to make a correction to the Parts Information. Please discard Corporate Bulletin Number 05-08-43-003 (Section 08-Body and Accessories).
Condition Some customers may comment that the windshield wipers park in the out wipe (vertical) position. Cause This condition may be caused by a bent park tab on the windshield wiper motor bracket.
Correction To correct this condition, replace the wiper motor bracket. It will be necessary to transfer the following parts listed below to the new bracket. ^ Wiper transmission ^ Wiper motor crank arm ^ Wiper motor 1. Remove the windshield wiper motor drive system module. 2. Remove the windshield wiper transmission from the windshield wiper motor bracket. 3. Remove the wiper motor crank arm from the windshield wiper motor. 4. Remove the windshield wiper motor from the bracket. 5. Install the windshield wiper motor to the new bracket. 6. Install the wiper motor crank arm to the windshield wiper motor. 7. Install the windshield wiper transmission to the windshield wiper motor bracket. 8. Install the windshield wiper motor drive system module.
A TSB is not a recall, if vehicle is still under warranty the dealer should be repaired for free. If not, you'll have to pay for the repairs.