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View Full Version : A loss of power at 70mph


cedric44
Mar 14, 2012, 12:55 PM
I have a 1999 ford f350 7.3 PSD it loses power. At 70mph

TxGreaseMonkey
Mar 14, 2012, 01:27 PM
. Damaged turbo?

. Replace air filter, if it hasn't been changed in 15,000 miles.

. Replace under hood and under frame fuel filters, if they have not been replaced in 15,000 miles.

. Check fuel pump pressure.