I have a 1992 Ford Crown Victoria 4.6 Litre with 200000 KMS. Idles perfectly, but under a load the engine surges (ex. Hold break and give it moderate to heavy gas) Also under moderate to heavy accelertation the engine will also surge until it picks up alot of speed. Then when it reaches desired speed, the engine will then buck. Have changed coils, wires, plugs, fuel filter, air filter, fuel pump, and even changed the computer but after that didn't work put the old one back in. And by the way it made no difference, going crazy triing to figure this out, please help.
have the same problem?
Tuesday, November 6th, 2007 AT 6:31 PM