With all cars 96 and newer, scan for codes to see if any are present. Most parts stores do it free. Some possible causes of knock on startup: dirty/clogged oil pickup weak oil pump deep engine wear (i.e. bearings, rings etc)
check your fuelpump
It will work as long as it fits.
Most likely a 4L60E.
1
The AC low side service port on a 1999 Chevy Astro van is located next to the firewall. It is the port that is closest to the evaporator.
Yes. The lug pattern is the same on all Astro vans up to 2001. 2002 they went to a six lug pattern.
Engine diagrams can be used as guides when it comes times to making necessary changes. An engine diagram to a 1999 Chevy Astro Van can be found in its maintenance and repair manuals.
Right under the ignition cap.
My 95 Chevy Astro van averages 15 mpg in the city. I do not know what it gets on the highway. It has a 4.3 L V6.
Try replacing the distributor cap.
The 1999 Chevy Astro horn relay switch can be found on the back of the horn. The relay switch will be attached to the horn with two retaining screws.
Mounted on top and inside the fuel tank.