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Express 2500

It sounds like you may have a problem with your key. If the key is excessively worn it will not be able to unlock the ignition cylinder so you can turn the key. I would ask for help from one...

Additional ground clearance, if required for any floor jacks, can be gained by driving the vehicle onto a very gradual ramp. Typically, ordinary 2 by 10's (ordinary framing lumber) is used for this purpose (designs vary, but it is easy...

Hello. There are a lot of reasons that would cause a high idle, but most of the time it is caused by a vacuum leak. When there is an excessive amount of air entering the engine the computer will compensate...

Hi There, Most battery chargers on the market today have a couple of different settings. They will usually have a regular 12 amp charging mode, a 6 amp charging mode and a boost charging mode. The 6 and 12 amp...

I would recommend consulting a wiring diagram for this particular modification. Wiring diagrams are available in Chilton or Haynes service manuals. You can pick up one of these books at all of your local auto parts stores for the particular...

There are several causes for low oil pressure (https://www.yourmechanic.com/services/oil-pressure-light-is-on-inspection). They include components such as crankshaft bearings, to things like an oil filter or pump. A leaking o-ring will cause some issues, mostly related to low oil levels. The oil passages...

Hello. Thanks for writing in about your 2003 Chevrolet Express 2500. There should be a relay for the turn signals, flasher, and hazard lights. More than likely, this relay is faulty and would need to be replaced. It is also...

Hello. It is possible that the transmission is faulty (https://www.yourmechanic.com/article/the-10-transmission-problems-to-never-ignore) and may need to be replaced for your 2007 Chevrolet Express 2500. It sounds like the transmission valve body is overheating and causing the shifting problem you are experiencing. The...

Hello. The oil can leak from any number of places on this engine. The most common places that this engine leaks oil is from the valve cover gaskets, and from the rear main seal. If it is dripping while the...

Hi there - the P0332 (https://www.yourmechanic.com/article/p0330-obd-ii-trouble-code-knock-sensor-2-circuit-malfunction-bank-2-by-spencer-clayton) problem code indicates a "low signal", which can mean a bad knock sensor, but it can also mean "no signal", as in, a wiring problem. Check the connections to the sensor for good connectivity,...

Hi there - I would check the turn signal (https://www.yourmechanic.com/article/how-a-car-turn-signal-works) light bulbs and ground connections on the side which is not flashing. Burned out bulbs, shorts and poor ground connections can cause the "no flash" behavior you describe. If the...

It's always advisable to transport small children in the back seat. However, if your van does not have back seats, there should be an airbag off switch located on the passenger side of the dash. The vehicle key must be...

Hello. Most of the time if you have a multiple cylinder misfire such as this, it is caused by a fuel system problem. If the fuel pressure is low, then this will occur. If the fuel pressure is fine, then...

Hello and thanks for your question. When changing out the transmission and ECM from another vehicle to your vehicle with the same year and model can effect many things. Check all plug to ensure that everything on the transmission is...

Hello. The power steering in your 2007 Chevrolet Express is run off of vacuum from the engine. If there is a vacuum leak in the engine’s system, it will cause the problem that you are experiencing. The brake booster (https://www.yourmechanic.com/services/brake-booster-vacuum-pump-replacement)...

The code P0101 (https://www.yourmechanic.com/article/-p0101-obd-ii-trouble-code-mass-airflow-maf-circuit-operating-range-or-performance-problem-by-john-nelson) is for a problem with the MAF sensor and code P0303 (https://www.yourmechanic.com/article/p0303-obd-ii-trouble-code-cylinder-3-misfire-detected-by-spencer-clayton_2) is for a cylinder number 3 misfire. The first thing to check is to make sure there is no vacuum leaks or leaks between...