also changed fuel filter thinking it was clogged when problems started. truck ran great with new filter & didnt cut out, but when it stalled last, all dash warning lights went out, & wouldnt start back up.

Response from rebzilla
3 questions asked

The info I looked at was for 5.7L engine. The pink wire carries voltage from ignition switch to ignition coil then to distributor. diagram below.

Answered by JDL (expert)
14,457 answers provided

But if the ignition switch was bad, would it still turn over?

Response from rebzilla
3 questions asked

There are several circuits that come off the ignition switch other than the crank position. Is the pink wire hot at the coil, key on? I can give you a wiring diagram for ignition switch, if you need it?

Answered by JDL (expert)
14,457 answers provided

Did you check the fuse circuits below? Goes hot whith the key on.

Answered by JDL (expert)
14,457 answers provided

Fuses hot with key on, wires to distributor have no voltage at all with key on, so yeah, probably that darn switch.. Thanks much!

Response from rebzilla
3 questions asked

Is it hot at the ignition coil, pink wire? I didn't look to see if coil was in the cap or where?

Answered by JDL (expert)
14,457 answers provided

coil not in cap, but no voltage going to it I could find using a test light.

Response from rebzilla
3 questions asked

coil in front of distributor. checked all wires going to it & from it, also checked all wires going to distributor. No voltage.
Power box under hood ( fuse box ) shows power to fuses. will be taking ignition switch out . Thanks again :)

Response from rebzilla
3 questions asked

Check the feed to/from ignition switch, before you do anything. Check maxi fuse 6-- 40 amp for voltage, hot all the time, red wire D5 in diagram. Pink wire is feed from the ignition switch, goes hot with the key on.

Answered by JDL (expert)
14,457 answers provided