Engine Cooling System Problems of GMC Savana

Van was being driven early morning for about 30 minutes. No rain, 45 degree outside temp. , headlights on. Driver first noticed dash lights flicker & alternator gauge showing a discharge, then these issues returned to normal. The van continued being driven for 15 minutes to destination w/o further issues. Upon departing van, driver noticed unusual smell and was told by another person that smoke and fire were coming from underneath the van at about midpoint. Upon inspection the driver saw flames emanating from said point underneath the van and liquids on the ground. Emergency call to the fire department was made & a third person brought a fire extinguisher to the scene. Fire was extinguished but reignited as the firemen arrived to complete the job. Vehicle not severely damaged and no injuries. Vehicle was towed for inspection. Discovered the alternator charging wire to the battery had not originally been secured or shielded properly and was rubbing on a bolt head securing two a/c charging tubes. Over an extended time the wires insulation wore through & voltage was supplied to the a/c freon transfer tubes running from the left front side to the rear of the van where they crossed over to the driver side at about midpoint on the body. The cross tubes are between the vehicles body & long shield. This is where the positively charged rear a/c transfer tubes made contact with the negative/grounded rear heater transfer tubes, sparked & ignited the combustible fluids within the freon. The alternator charging wire was repaired, shielded & secured. The damaged rear transfer, crossover a/c/heater tubes set was ordered for replacement. Rear heater tubes were bypassed and the vehicle is being driven without a/c or rear heat until the parts arrive. No apparent damage to the charging system, a/c or rear a/c/heater is suspected at present. Confirmation will occur when part is installed and a/c is recharged, coolant system is serviced and tested.

See all problems of the 2003 GMC Savana 🔎.

The contact owns a 2003 GMC Savana. While driving 65 mph, the engine suddenly stopped. The vehicle was able to be restarted after five minutes. The dealer was unable to diagnose the previous failures. The most recent failure was diagnosed as the crankshaft position sensor. The dealer stated that the failure is similar to NHTSA campaign id number 07v521000 (engine and engine cooling). The VIN was unknown. The current mileage was 66,000 and failure mileage was 20,000.

While driving there was smoke. Once getting out of the vehicle it became engulfed with flames. Other than normal service, nothing was wrong. The consumer was told that this year and model vehicle has had numerous fire problem. The consumer would like to e contacted to discuss the failure.

See all problems of the 2000 GMC Savana 🔎.

Vehicle will accelerate on its own when put in gear as soon as consumer takes foot off brake. This has happened. Dealer cannot remedy problem. The master cylinder leaks brake fluid and brake pedal was low. The consumer uses brake excessively because of lack of engine deceleration. There is coolant leak at right rear intake manifold.

See all problems of the 1998 GMC Savana 🔎.

Loss of engine coolant was reported to dealer multiple times. First reported at 16,799 miles. Dealer always did pressure test but reported no problem. Now my mechanic tells me I have coolant in the oil.

See all problems of the 1997 GMC Savana 🔎.