Quote:
Originally Posted by 911FL
Hope someone can help here. I just had a valve adjust and an oil pressuure sender (idiot light) replaced due to an oil leak. The tech used degreaser to clean up the topside and then sprayed a "protectant" (an oily smelly film) all over the engine compartment. I picked up the car yesterday afternoon and it ran great (he did say it wouldn't start at one point following the degreasing and messed with the ref sensor and speed sensors and then it fired up). Now it won't start. Cranks but won't fire. I cleaned inside the dist. cap and checked all the plug wires, even changed out the DME fuel relay. At a loss, and quite unhappy - beautiful day here in Florida and can't even enjoy it. Thanks for any help at all.  |
Do you have spark?
Try above first (Quote:It'll be a spark issue. It occassionally happens to me when I pressure wash the engine. I use compressed air to totally dry the distributor cap, leads (both ends) and spark plug ports)
Old trick I learned a long time ago on Turbo motors with knock sensors.
Everytime we washed the motors warm they wouldnt start. For what ever reason the impulse signal from the dizzy got f'ed up.
Get or borrow a soldering iron (not the pencil type) like the heavy Wellers with the big coil in them. Plug it in, hold it next to the dizzy and pull the trigger. Dont touch the iron to the vehicle just close. The ignition needs to be on (run)The magnetic field generated by the iron coil would trip the impulse sender.
I thought this was nuts but it worked. I have seen Mercedes tech's use the same technique.