'Toothed Belt Service' warning...

I already have a PKT in my 90GT, but today received two warnings 30 seconds apart that said 'Toothed Belt Service'. I cleared the alarm and immediately turned around and slowly headed home. It was 7 miles, & the alarm never went off again. The PKT is supposed to be auto-adjusting, so am I seeing an invalid alarm warning? My Timing Belt is coming up on the 30k miles mark.

I think it critical to tell you that this is by far the coldest morning of the season so far, so I question if that played some part on how the hydraulics of that PKT functioned.

I am hesitant to crank it back up, now that it is back home in the garage. I believe we will pull the front cover and inspect all, first.

Any input is by far welcome. I've never had this happen before, and worry about treading on thin ice with such a critical component...

Thx in advance!

Ken's tensioner doesn't utilize the warning light.

The OEM belt warning system works by breaking an electrical circuit (ground). This circuit is permenantly grounded with the Porkensioner installed so if the light is coming on then its to do with grounding and nothing to do with the belt.

Research Kens write up of installation and youll see how the system is supposed to corectly grounded........let us know.

Is there a quick and easy way to check the Timing Belt, without spending hours pulling everything apart? Or do you think I even need to be concerned, based on the fact that PKT doesn't utilize the sensor anyhow? I wonder why it has not been in alarm, up until now.

There's nothing on the Porkensioner to trigger the alarm, so if you're checking the belt because the alarm went off, there's no reason to.

Checking the tension on your belt shouldn't take hours. You only need to get behind the passenger timing belt cover which is maybe a 15 minute job.

- remove passenger intake tube
- remove pax distributor cap with wires connected and pull them back out of the way (may have to move the pax ignition coil, not sure on the 90) alternately unplug wires and remove cap, the timing cover is marked with the cylinder number that goes on each plug so you get them back on in the right place even if the decal with the diagram is missing from the radiator of your car.
- remove distributor rotor (may not be necessary to clear the cover, I just always do because it's right there.
- remove bolts holding timing cover in place, remove cover and check tension.

Clearly there is something wrong with the way it was grounded but that light bulb might as well be removed from your dash since it can only be one thing now: malfunction in the disconnected monitoring system.

The tbelt tension has to be checked with the engine @ TDC #1 cylinder........if not you'll get wrong readings plus with a Porkensioner theres nothing to adjust...........IF the belt is loose its worn out!

The warning light, in this situation means nothing!