While driving about any speed vehicle will stall and lose electrical power and power steering. Had taken vehicle to a technician. Technician told consumer that cause may had been with fuel injector sticking, and had happened four times, just like safety bulletin g99066b, may 2000.
1999 GMC Yukon fuel system complaints
Page 2 of 2: complaints 11 to 16 of 16, newest first, as owners wrote them.
Vehicle returned after 'fix' on 6/14 complaint: a loud thump noise at engine transmission area, then loss of power going uphill work done: lubed drive shaft (inv 412596) second time in: 6/20 (inv412895) complaint:cust returned for complaint of intermittent stalling and, extended starting" work done: ignition coil, ignition replace third complaint 7/18/00-7/25 in shop (inv 414264 "t5533 replace new scpi injector(s) as necessary - bad catalytic converter replaces, replace right 87wt"fourth complaint: 9/6/00 to 9/8/00 in shop (vehicle not driven between 8/2 and 8/26, in garage) "customer states engine died while driving50 MPH. It lost power and seemed like no fuel was getting to engine" stated cause:50psi, low l1225 sender/pump assembly, fuel (tank unit) - repalce left tank 228 wtl 2.20.
Vehicle was leaking gas from rear when parked and turned off. Dealer has seen vehicle 3 times, but still no solution.
When driving at 20-25 MPH engine will cut off without prior warning, which causes loss of all power. Consumer has contacted dealer, fuel filler was replaced. However, problem still occurs. Please provide any further details.
J3140- eng cool adaptr rpl, f2023-pin shaft seal, t2020-warrenty towing, f3023-rr diff housing rpl, c0382 r/r win reg r&r/ rpl, j1400-flywheel(auto) rpl, j5645-fuel injector clean, k4123 trans case sel sw,12345104, check engine soon light came on everytime I had work done. The truck has been in the shop up to 8 times!
Noticed oil spots on garage floor. Drove to gmc dealer for repair. First repair, dealer incorrectly diagnosed problem as fuel filter leak. Second repair, I indicated that the leak was from transfer case not fuel filter. Dealer removed/reinstalled transfer case to replace defective/install a new seal ring to correct problem.
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