The AC/heater (HVAC) system may unexpectedly switch to the defrost mode when accelerating. This system is operated by engine vacuum and should be inspected for any vacuum leaks if this problem develops. There is also a revised vacuum check valve available to address this concern.
Resources for the Repair and Maintenance of your 1996 Dodge Ram Van 2500
1996 Dodge Ram Van 2500
1996 Dodge Ram Van 2500 Problems
On 3.9L V6 and 5.9L V8 engines, the intake manifold gasket may leak and cause increased oil consumption and a spark knock during acceleration; the gasket should be replaced.
Leak detection pump failure can be caused by the internal diaphragm switch sticking, or in some cases, contamination from debris or carbon particles from vapor canister. If black carbon particles are present in the LDP, replace vapor canister in addition to LDP. The purge solenoid should also be checked for debris or carbon contamination and replaced as necessary. All evap system hoses are subject to cracking and splitting causing leaks, Inspe...
Some vehicles may exhibit one or more of the following: Spark knock complaints when the vehicle is under load, various single cylinder misfire, and surge in 4th gear (around 45 mph). Our technicians tell us that rerouting the coil and spark plug wires to minimize induction effects will commonly correct this condition. If wires must cross during the reroute procedure, they must cross at a 90 degree angle.
On the 3.9L V6 and 5.9L V8 the engine oil leaks at the distributor can be misdiagnosed as leaks from the intake manifold seal, oil pan gasket, or rear crankshaft (rear main) seal. A revised distributor is available if oil is found inside the distributor.
1996 Dodge Ram Van 2500 Questions and Answers
where is the oil sending unit located
why does keyswitch turn, dash lights up, but no click is heard at starter
I am not getting any power to the # 20 fuse that gives power from the battery to the interior lights and the radio to keep the presets and the clock
All other fuses work
Is there an inline fuse ...
Ok so I have replaced sender unit, thermostat and water pump on this Ram Van. Still gets hot but not steaming hot. No heat coming out either. I pulled the water lines from the pump to the heater co...