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Froedge-Martin · 05-13-1999, 07:58 PM

My wife's Mustang ('89 four cyl.) is having a recurring bout of sputtering: After warming up, and passing about 1500 RPM, the engine will suddenly suffer a drop in power- the exhaust making a quiet sputtering noise. Hammering the accelerator to the floor somehow pushes the car past this sputter which clears up- for a few minutes. Often, the car can go for hours without suffering this loss in power/response. And use of the A/C seems to increase the frequency.

The following were replaced: fuel pump, distrib. cap, plugs, EVP sensor. When taken to the dealer, the advice was "clean the injectors" which was done as well as a timing check.

Anyone have any ideas?

05-13-1999, 07:58 PM	#1
Froedge-Martin Registered Member Join Date: May 1999 Location: Clarksville, IN 47129 Posts: 1	SPUTTERING ENGINE My wife's Mustang ('89 four cyl.) is having a recurring bout of sputtering: After warming up, and passing about 1500 RPM, the engine will suddenly suffer a drop in power- the exhaust making a quiet sputtering noise. Hammering the accelerator to the floor somehow pushes the car past this sputter which clears up- for a few minutes. Often, the car can go for hours without suffering this loss in power/response. And use of the A/C seems to increase the frequency. The following were replaced: fuel pump, distrib. cap, plugs, EVP sensor. When taken to the dealer, the advice was "clean the injectors" which was done as well as a timing check. Anyone have any ideas?