1990 Gmc P300 problems
The Chevrolet Step-Van (and its badge-engineered counterpart, the GMC Value-Van) is a multi-stop truck made by General Motors from 1940 to 1998.
Dubl-Duti
The first generation of General Motors multi-stop delivery van was called the Dubl-Duti, introduced in 1940. The van was built on the 115-inch (2,921 mm) chassis of the Chevrolet pickup truck, with a body built by Divco Twin. The Dubl-Duti van used the same 216.5-cubic-inch (3.5 L) "Thriftmaster" six-cylinder engine as the pickup and Chevrolet passenger cars, but with a single-barrel updraft Carter carburetor rather than the downdraft Rochester unit used in other Chevrolet trucks.
The Dubl-Duti was restyled in 1941 to suit the new Chevrolet AK Series truck body. Despite the "Advance Design" trucks being released in calendar year 1947 as a 1948 model, the AK Series-based Dubl-Duti continued production for another year thereafter.
A new generation of Dubl-Duti was introduced for model year 1949, with two different wheelbases shared with the medium-duty Advance Design pickup trucks: the model 3742 with 125+1⁄4-inch (3,181 mm) wheelbase, and 137-inch (3,480 mm) log model 3942 . The "Thriftmaster" engine was carried over for the 1949 and 1950 model years, and replaced for 1951 by the 235.5-cubic-inch (3.9 L) "Loadmaster" engine. The Dubl-Duti ceased production in 1955.
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Common 1990 Gmc P300 problems
The GMC P300 1990 is a reliable vehicle, but like any other car, it can experience certain issues. One common problem with the GMC P300 1990 is the P0300 code, which indicates a random or multiple cylinder misfire detected.
Ignition system problems, such as a bad distributor or worn spark plugs, can cause the P0300 code. A weak fuel pump or clogged fuel injectors can lead to fuel delivery issues, which may trigger the P0300 code. Engine mechanical problems, like a failed head gasket or loose timing chain, can also cause the P0300 code. Sensor issues, such as a bad mass airflow sensor or crankshaft sensor, can contribute to the P0300 code. Wiring problems, such as a broken wire or loose connector, can also cause the P0300 code. Emissions equipment issues, like a bad exhaust gas recirculation valve or secondary air injection system failure, can lead to the P0300 code. Computer problems, including software in need of an update or faulty hardware, can cause the P0300 code. Vacuum leaks, such as a damaged vacuum hose or a leaking intake manifold gasket, can also trigger the P0300 code.
The common symptoms of the P0300 code include a check engine light that is illuminated, engine performance problems such as hesitation and lack of acceleration, hard starting and extended cranking, shaking and jerking as the engine stutters, reduced fuel economy, and a failed emissions test.
To diagnose the P0300 code, it is essential to look at all possible causes. If you are not equipped with the technical knowledge to address the issue, it is best to take your car to a mechanic rather than trying to fix it yourself.
To fix the P0300 code, you may need to replace the spark plugs, fuel injectors, ignition coils, distributor cap, rotor, oxygen sensors, or other components, depending on the specific cause of the issue. It is essential to address the P0300 code promptly to prevent further damage to the engine or emissions system.
1990 Gmc P300 car problems categorized by type of issue
After analyzing all complaints sent to the NHTSA and researching popular Gmc P300 problems, we found that the most common problems with these 2023 model year vehicles are:
- Parking brake problems
The graph below shows statistics for all 1990 Gmc P300 vehicle components and the number of complaints received.
1990 Gmc P300 complaints
The NHTSA has received 1 complaints about various vehicle components related to the 1990 Gmc P300.
PARKING BRAKE PROBLEM
- Date Of Incident: 1994-10-28
- VIN: C9494310279
- Components: PARKING BRAKE
- Summary: THORSON MOTOR CENTER 94V183. DEALERSHIP DOES NOT HAVE THE PARTS. TT
1990 Gmc P300 recalls
The National Highway Traffic Safety Administration (NHTSA) has issued 2 recalls for different components of the 1990 Gmc P300.
- Manufacturer: GENERAL MOTORS CORP.
- Components: PARKING BRAKE
- Summary: THE AUTO APPLY PARKING BRAKE SYSTEM FAILS TO RELEASE THE PARKING BRAKES AFTER ACTION HAS BEEN TAKEN TO RELEASE THEM OR THE SYSTEM MAY AUTOMATICALLY APPLY THE PARKING BRAKE WHILE THE VEHICLE IS IN MOTION. IN EITHER CASE, IF THE DRIVER DOES NOT NOTICE THE TELLTALE RED BRAKE LIGHT AND STOP THE VEHICLE, THE SYSTEM WILL FAIL.
- Consequence: IF THE OPERATOR PARKS THE VEHICLE, APPLIES THE PARKING BRAKE WITH THE FAILED AUTO APPLY PARKING BRAKE SYSTEM, THE PARKING BRAKES WILL NOT SET AND THE VEHICLE CAN ROLL INADVERTENTLY.
- Remedy: DEALERS WILL UPDATE THE COMPONENTS OF THE AUTO APPLY PARKING BRAKE SYSTEM, BLEED THE HYDRAULIC POWER SYSTEM, AND ADJUST THE PARKING BRAKE.
- Manufacturer: GENERAL MOTORS CORP.
- Components: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS
- Summary: THE FRONT LEFT BRAKE PIPE CHAFES AGAINST THE POWER STEERING HOSE WHICH WEARS A HOLE IN THE BRAKE PIPE. THIS CAUSES A POTENTIAL LOSS OF BRAKE FLUID RESULTING IN LOSS OF FRONT BRAKE SYSTEM OPERATIONS.
- Consequence: IF THIS OCCURS THE BRAKING EFFECTIVENESS OF THE VEHICLEDIMINISHES AND MAY RESULT IN A VEHICLE CRASH.
- Remedy: DEALERS WILL INSTALL A NEW BRAKE PIPE WITH SUFFICIENT CLEARANCE TO PREVENT THIS CONDITION.
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