Have been given a 98 Chevy Tahoe 5.7L to drive. Vehicle has history of fuel delivery problems that were addressed by replacing fuel pump numerous times. Have had the vehicle for ~4-5 months. Recurring event is vehicle will be driving at full highway speed or even 20 mph and suddenly die. Sometimes you can downshift and this will keep the vehicle operating momentarily before the vehicle comes to a complete stop. When vehicle comes to a stop and is restart, the motor chugs and chugs with no turnover. Have taken a dealership, he can't diagnose because the darn thing starts up and is fine at the shop. It happened twice in the summer months in ~90-100 degree ambient temperature ; both happened after 5-10 minutes of driving. Hasn't happened since until this weekend when driving in Utah desert for ~ 2 hours in ~80 degree temps while towing an ~ 500-750 lbs, single axel trailer. Solution to the occurence this weekend was to wait ~ 5 hours after truck stopped running and try to restart. When restarting, engine chugged for ~ 2 seconds and then quickly started. Key was inserted for well over 5 seconds before turning over and the gas pedal was not pressed.
Please help!
Ryan in Colorado
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Monday, October 19th, 2009 AT 5:47 PM
