Door latch on a GMC Yukon will not open - 1990 Chevrolet Suburban

Believe it's built into the latch mechanism

the switch is part of the latch assembly

This appears to be a fairly common problem on your vehicle 2 seperate occurences the electronic locks will not operate and also the mechanical latch not operating both resulting in an inoperative back door condition. It seems the only way to open the door is to remove back door panel and manually operate the latch mechanism and then find why it will not operate normally for instance the linkage no longer being attached to latch mechanism or electronic connector not making connection both have been found to be common in gmc yukons

Might need to adjust rear door latch, or could be bad relay or switch. Try pulling/pushing on rear door while closed to see if you can set this off while sitting still.

Your door switch is made into the door latch, you might try spraying WD-40 into the drivers door latch and work the latch open and closed. You will probably end up having a new latch installed though.

do you mean when opening the door with the door handle,if so then does the handle have any resistance or does it move like there is nothing connected to it.if so then the rod that connects the door handle to the latch may have come disconnected,bent or the clips that hold it attached to the handle and latch may have broken or come unfastened.you will have to remove the inner door panel to gain access to this area.

if the latch is in the lock position insert a pen into it hold the handle open and pop it out

Could be the latch mechanism for the door is sticking. You could try using some white grease on the latch and the contact where the latch hooks to. You can purchase the grease from most auto parts stores. You will not need to use alot. Just apply a small amount to the mechanisim and then work it in using the manual handle. Then open and close the door several times to feel the "action". Then apply a little more and repeat. This should loosen the latch and get it working again. Also make sure that none of the tension springs have come loose on the latch. And check the seal around the door and make sure it is not pinched and has a proper fit.

I've got a 97 GMC Yukon XL, I have a problem with the inside door handle on the driver side. To open the door I have to pull the handle and give it a shoulder for it to open. I think my problem is my door latch, I think it's giving out? Help

Climb into the back of your Yukon, using a apholstery tool (looks like a bent screwdriver with a claw on the end) or a putty knife and pry the bottom of the inner door skins off cut a 6 inch gash in the clear plastic to expose the door handle mechonizims. spray brake cleaner on the inner latch to clean, then using penitration oil to unsieze. Grab the long metal rod and work it up and down...the should open. repeat to the other door if it will not open as well. I had to replace my barn door inner latches on second barn door. (the door that opens last) with safari barn door latches. I got them from a wrecking yard cheap. ($15.00) to replace at GM....over $200.00. The wrecking yard told me the latches wouldn't work, but I look at the Safari latches and they were identical. My barn doors work perfectly. Hopefully this helps.