Last post on Aug 20, 2010 at 5:46 PM
You are in the Chevy Express & GMC Savana
What is this discussion about?
Chevrolet Express, GMC Savana, GMC Savana Cargo, Van
Nov 17, 2008 (12:45 am)
Fuel level.....I noticed that in the owners manual it says you have some left when it reads "E".
Second, the fuel recovery could be a solinoid/valve on the engine and not the gas cap. The tank has a line that runs up to the intake. I dont know where on the the 4.3, but on the the 5.3 its on top of the intake at the front. The pcm pulses the solinoid to put the gas vapor in the engine (for emmissions) after it warms up a bit. Its not uncomin for the platic to break or crack, or the plastic line to it. It is possible to cap the lines and the vacuum leak with no ill effects to how it runs. It will have the code unless deleted via laptop retuning of the pcm and may not pass smog testing depending on were you are at. If the code is deleted, it passes no matter what, but is not good for the enviroment.
The solinoid could just be dead or stuck also. Most of the ones Ive seen are 1 inch by two inches long, with two wires run to it.
#17 of 21 Re: [1320jon]
Jun 15, 2009 (1:05 pm)
Hi guys, hoping you can help with a couple questions. I was wondering how easy it is to replace the oil filter on the Chevy Express/GMC Savana. Does the van need to be lifted at all or is there enough clearance to do it with it just sitting on the driveway? I presume the oil filter is accessible from the bottom. TIA
#18 of 21 2000 Chevy Express Fuel Pump
Nov 05, 2009 (5:34 pm)
Does anyone know exactly how to replace the fuel pump on a 2000 Chevy Express?
Does the owner's manual have directions?
#19 of 21 gm express van power steering pump problem
Dec 29, 2009 (6:43 pm)
I have an 2005 express cargo van. At about 40,000 miles, it developed a winding noise which appears to be coming from the power steering. I was not notified to change the power steering fluid, nor is it in the owners manual. Upon investigating, I've noticed that the power steering fluid appears to have been overheating. Does anyone know of this problem and how to solve it?
#20 of 21 1998 Savanah 6.5litre turbo
Aug 15, 2010 (9:16 pm)
The van is doing half the minimum mpg.About 7mpg. Garage says the vacuum pump is the cause and are replacing it.
I am a refrigeration/air conditioning engineer but until now was not aware there was a vac pump on these vehicles.They say it controls the air conditioning and fuel system runs continuously with the engine.
Just basically, how does it control the A/C and fuel?
I imagine the fuel is made to evaporate more efficiently but the A/C has its own circulating compressor for the R134a gas used.
I am a British engineer working in Eilat.I have no experience with these very popular vehicles so I would like to learn more.
#21 of 21 vacuum pump replacement on GMC Savanah
Aug 20, 2010 (5:46 pm)
The replacement vac-pump ha improved fuel economy and the A/C flow.It also seems to have improved the auto gear changing.