Just replaced my ED low-series cluster to a mid series (sports) cluster. With the old cluster the temp guage didn't work...and same with the new cluster too. Knew I'd have to change the sender anyway, so I did (tried 2 different senders I took out of futuras at the wreckers )...still no go ...suspect it may be a wiring continuity issue. Have read the doc about changing clusters and noted the appliccable connector & wire on the cluster. HOW TO CHECK CONTINUITY ALONG THE SENDER WIRING?? or is there something I can rig up to the engine-end of the sender-wire to check if there's any signal getting through to the guage?? Could it just be that all 3 senders tested (or both guages) just happen to be buggered??? Any input would be appreciated muchly! thanks guys.