1994 GMC Jimmy Transmission and drivetrain Problems

“94 s15 Jimmy is not switching out of 3rd gear only gets up to 40-45 MPH. I've tried manural gear switching no luck. Was told it could be gear oil low. Im gonna change tranny filter and fluids and hopfully some luck . If any info on this plz reply. Just bought truck and was told it just stopped changing gears. Drove it hom drives fine but no luck with it changing gears.”

“Recall 99i00600 repairs were done. Brakes were modified without permission. Abs brakes will not work on vehicle in 4 wheel drive, dealer did not put identification label where recall was done on vehicle. Contacted dealer and dealer stated did recall accordingly. Consumer stated dealer install 2 transfer case switches, the dealer stated that the switches were cracking allowing transmission fluid to get into the vacuum lines.”

“While driving on the highway the 4-wheel drive becomes engaged. When engaged it causes the vehicle to slowdown and transmssion roars. Consumer feels if this happens at the same time with use of ABS it could cause a collision.”

“4- wheel drive module has gone out. Also, over past years consumer had to replace fuelinjector system/ EGR valve/ brake linings/ brakes once yearly/ fuel pump, and instrument cluster.”

“Egr valve has failed four times, valve fails on acceleration. Contacted dealer, and dealer was not willing to do anything. Consumer also had transmission replaced it was noisy,also brakes were ineffectve, it was determined that rear wheel cylinders were leaking and excess build up of brake dust, mechanic recommended that vehicle not be driven due to both rear wheel cylinders are leaking, also when vehicle is warmed up, and the longer its driven vehicle hesitates and stalls, service engine light comes on,also radiator low on coolant inspection found that hose clamp at thermometer housing…”