engine Stalls randomly,and It does crank over. on 1999 Cadillac Escalade

Is the fuel pump randomly bad then good? Cause if I wait awhile, could be 1hr or 3hrs.. It starts! Is the emission sensor a culprit To this problem?

by in Lubbock, TX on November 17, 2013
2 answers 3 comments
ANSWER by on November 17, 2013
Could be a fuel pump; Several years ago had one doing the same thing. Tested the ignition system, computer system, no problems, still died while driving. Finally attached a fuel pressure gauge and took it for a ride. Sure enough the pressure would drop and the engine would die. Pull over and it would start right up with good fuel pressure. Drive a little more and pressure drops again. Changed the pump & filter, no more problems.
COMMENT by on November 17, 2013
Thanks I feel better about what to do.. This helped me out.
COMMENT by on November 18, 2013
ANSWER by on November 18, 2013
could be fuel pump or other issues seek diag as not to waste time and money
COMMENT by on November 18, 2013
Good idea, thanks

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