Q: When carrying a load, van rough idles and loses power - 2001 GMC Savana 3500

asked by on

There is a low and rough idle in my van and when carrying a load, the van dies and loses power. There are no codes to report. The following have already been replaced, but have not helped the problem: plugs, spark plugs wires, fuel pump, fuel filter, rotor, cap, TPS sensor, idle air control sensor, EGR valve, air filter, and MAF sensor. Why have these replacements not fixed the low/rough idle and loss of power in my van?

Hello. There may be an issue with your fuel injectors. If the fuel injectors are clogged, this will not usually throw a Check Engine Light code but will prevent the engine from running properly. If a fuel filter becomes overfilled with debris, some of the debris may make it through the fuel filter and may therefore clog the fuel injectors. I would recommend trying to replace the fuel injectors. I would strongly recommend having this service performed by a professional, as some powertrain control module programming may be required after replacing the fuel injectors.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. When carrying a load, van rough idles and loses power - 2001 GMC Savana 3500

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Could you show me what it looks like?

Hi there. First check the fuel filter and see if the filter is plugged up. If your vehicle has a tank filter and not a inline filter, then check the fuel pump relay and see if it's clicking on when...

Q: Using the MAF cleaner for cleaning the throttle body

Yes, you can use a MAF cleaner on a throttle body, but you cannot use throttle body cleaner on a MAF. The MAFs are very particular. If you use the wrong kind of cleaner on the MAF sensor and it...

Q: Why doesn't my 2005 Ford Mustang have a valve cover gasket? When I went to replace it there was none on the pan?

Hey there. There is no known Ford Mustang engine I know of that does not have a gasket for the valve cover. Some engines will use a bead of silicone all the way around. You will need to clean out...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.