1998 GMC Jimmy hood release cable broken

The only fix is to replace cable. Fairly easy, there are plastic "tangs" that need to be depressed at the firewall. This will release the cable so it can be pulled through. Follow the cable thru to the pedal. It is just a matter of disengaging at the pedal and at the throttle body connectors. Pay close attention to the cable routing, as incorrect install can be detrimental to operation!

Here's a video Dan Hooper suggested as a solution to your problem from YouTube:


Opening Hood with Broken Release Cable

Their is a cable in the control access the cable and pull on it with a pair of pliers then replace the part

If just the mounting broke & not the cable also, take a pair of vicegrips or good pliers on visible portion of steel cable & pull inward. If the cable itself is not broken it will pull out enough to open release.

get some vice grips and clamp them onto the cable-have someone at the hood and when you pull have them pull up on the hood. that should release it

You need to bend a hook in a coat hanger and then try to snag the cable end from the front of the truck,just below the hood.If you know someone who's truck you can look at[any chev or gmc truck] it will be easier for you to figure out.You may possibly have enough cable left inside the truck to get a pair of vise grips on,that would be easier.

On my 1998 GMC Jimmy it is under the hood on passenger side on firewall behind the PCM (black box) which is mounted on top of coolant overflow bottle. You'll have to remove these two items for better access or at least the PCM. Then you have to cut the moulding on the blower motor housing. You should see a groove already formed all the way around the housing and this is where you have to cut. Just don't cut all the way as you have to reseal it with caulk once you are done installing new motor.

You can temporarily fix this if this solution will work:
disassemble the hood release in the cabin and pull the cable until the hood latch opens. Then you can remove or adjust the cable as necessary.

I have to take WD40 every 6 months or so and spray moving parts and have a helper inside pulling handle to get it moving again, may have to press down on hood to get it open first.

the tps is ususally at the side of the throttle body opposite where the throttle cable / tv cable mount.
sometimes it won't start, run, or run erratically. there are ways of testing this unit (by output voltage) before you commit to buying a new one. to test it you will need a dvom (digital volt ohm meter).

just a note: straight from the book... "a broken or loose tps can cause intermitten burst of fuel from the injector and an unstable idle because the ecm thinks the throttle is moving."