Just add a tranny cooler,if your tranny gives you problems like not shifting etc,then it needs a rebuild,,,,the tranny fluid running hot is normal and can be fixed with a tranny cooler kit, Derale Series 8000 Plate Fin Transmission Cooler Kit Barb Inlets Class III... ,its a van,it is going to get hot,get a kit and hook it up,and see the difference,replace all o2 sensors while you are at it,they are cheap and if 1 goes then the others will go,and then you only have to be under it one time,not a couple times,here is info i found;
Transmission coolers are not vehicle specific, but there are ones that are recommended for certain engine sizes. What I did was look up the recommended coolers for the 4.8 liter engine for the 2008 Silverado to get an idea of what we recommend for that engine size.
The most popular cooler for the 4.8 is the Derale Transmission Cooler, # D13502, and GM fitting, # D13035. The cooler is listed for a load of up to 3,500 pounds. Before deciding on a cooler though it will be a good idea to look at the dimensions, listed on the product page below the description, to determine the best place to mount the cooler in the engine compartment.
I have included a link to a video showing a typical installation and a link to our FAQ article on transmission coolers for you to view.
Engine oil coolers would also be beneficial to extend the life of oil lubricated parts. The kits work well and from the information that I have received from Derale in the past, any restricted flow is so minute that it may not even be able to be detected.
I recommend the Derale Tube-Fin Engine Oil Cooler Kit, # D15501. The adapter has a 2-3/4 inch o-ring diameter which is used on the vast majority of GM applications. It also has multiple threads to ensure proper thread size. Again, you will want to check the dimensions of the cooler and compare that to the space under the hood of your 2008 Chevy Express Van ahead of time.
Both the transmission cooler and oil cooler come with all the necessary hardware and parts for installation. Current pricing information is available on each of the product pages.
Derale Snap In Radiator Adapter Fitting for GM Derale...
Quickly and easily install your new...
SOURCE: 1998 Chevy s10 4 cylinder running rough
1- check there is spark come from spark wires
2- check the fire timing by looking for every wire in the right place
3- check there is injector signl
4- check for any vacuom leak
5- try to clean the MAF by brake and parts cleaner
6- try to reset all the code and see what will come after that
SOURCE: Pulled code p0420 on 99 chevy astro, 2wd, v6
from what i am finding the code means o2 sensors. they recommend replacing them and if this does not work than replacing the cat converter
The catalytic converter has an oxygen sensor
in front and behind it. When the
vehicle is warm and running in closed loop mode, the upstream oxygen sensor
waveform reading should fluctuate. The downstream O2 sensor reading should be
fairly steady. Typically the P0420 code triggers the Check Engine Light if the
readings of the two sensors are similar. This is indicative of (among other
things) a converter that is not working as efficiently as it should be (according
to specs). It is part of the vehicle emissions
system.
causes
A code P0420 may mean that one or more of the following has happened:
possible soloutions
Some suggested steps for troubleshooting a P0420 code include:
One thing to note is that many vehicle manufacturers offer a longer warranty
on emissions-related parts. So if you have a newer car but it's out of it's
bumper-to-bumper warranty, there still may be warranty on this type of problem.
Many manufacturers give a five year, unlimited mileage warranty on these items.
It's worth checking into.
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SOURCE: 2000 chevy express 1500 van having starting issues
Start with fuel system. Listen for fuel pump humm at fuel tank No humm check wiring to pump for power. Then check for spark at plugs and wires. Remove wire from coil and hold near engine and see arch when you crank. No arch. Replace ignition Modular inside distributor cap or cap or rotor
SOURCE: I need the serpentine belt diagram for a chevy Express Van
DRIVE BELT DECAL SHOULD BE UNDER THE HOOD.OR YOU CAN GO TO DEALERSHIP GET ONE AUTO ZONE OR ADVANCE AUTO PARTS CAN GET YOU ONE.OR YOU CAN BUY A HAYNES REPAIR MANUAL IT HAS BELT DIAGRAM.
SOURCE: Check engine light lit. P0894 or P0984 error code.
Fixed error code P0894 - They replaced torque
convertor, solenoid, filter and did a flush.
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