Chevrolet Astro - Recent Questions, Troubleshooting & Support

NEW BEARING PRELOAD SHOULD BE 20-25 INCH POUNDS. USED BEARING PRELOAD TORQUE 10 - 15 INCH POUNDS.

Question edited for clarity. Question moved to model category. Black Smoke is rich mixture Blue Smoke is oil White Smoke is Steam What is this 'Trumbler' that you changed?? Not even Google has a clue! Are you losing coolant? Did someone put Windshield Washer fluid into the engine oil filler? You are burning water. The ECM doesn't like it so it it shakes. At idle there isn't as much pressure to stop the water entering the combustion chamber. Likely a failed cylinder head gasket. You can do a pressure test and there is also a test that identifies exhaust gases in the coolant. ..

Question edited for clarity and toss in some CAPS. Question moved to model category. Also click the images tab https://www.google.com/search?q=2000+Chevy+Astro.+Location+for+rear+brake+proportioning+valve ..

Question edited for clarity and typos. Question moved to model category. Some idea in the link https://www.google.com/search?q=chevrolet+astro+won%27t+start+when+hot ..

this may be coming from an axle"{ wind up" situation occurring when the diff between the front and rear diffs is not working properly. If you have traction control I would suspect a faulty sensor. Have the fault codes read to make sure

Chevolet Astro fuse box diagram and description https://www.autogenius.info/chevrolet-astro-1998-fuse-box-diagram/

People usually want the opposite. It is possible. https://www.google.com/search?q=1999+Chevy+Astro.+Can+I+convert+All+Wheel+Drive+to+2+Wheel+Drive ..

the fuse info is located in the owners manual, u can access this manual for free at the GM owners web site, u will nneed a Yahoo ID to use the site, that is free as well and the latest Acrobat 9 reader
here is the direct link to the site

http://www.gm.com/gmownercenter/gm/

sounds like a sensor is out or your fuse is out try those two things hope that helps

NOX is created when the internal combustion temperature gets to high.The egr system uses burnt exhaust gases to line to cylinder walls.The purpose of this is decrease internal combustion temperature therefore reducing the amount of NOX created.Would look to a possible egr malfunction usually they will trigger the check engine light but not always.The 4.3L has been known to have issues with carbon buil up in the egr and the egr pintle not open and closing properly.

Have the module in the dist. Checked. When they go bad it will not start.

Hi, the procedure is pasted below. Ignore the timing marks and just verify you are at TDC of the compression stroke on the #1 piston. You can tell compression versus exhaust stroke by plugging the spark plug hole with your thumb while turning the crankshaft (there will be no pressure on the exhaust stroke). Please let me know if you have more questions, and thanks for using FixYa.


Timing Disturbed

1. Remove the No. 1 cylinder spark plug. Turn the engine using a socket wrench on the large bolt on the front of the crankshaft pulley. Place a finger near the No. 1 spark plug hole and turn the crankshaft until the piston reaches Top Dead Center (TDC). As the engine approaches TDC, you will feel air being expelled by the No. 1 cylinder. If the position is not being met, turn the engine another full turn (360 degree). Once the engine position is correct, install the spark plug.
2. Align the cast arrow in the distributor housing, the driven gear roll pin and the pre-drilled indent hole in the distributor driven gear. If the driven gear is installed correctly, the dimple will be approximately 180° opposite the rotor segment when it is installed in the distributor.
   NOTE Installing the distributor 180° out of alignment, or locating the rotor in the wrong holes, may cause a no start condition or can cause premature engine damage and wear.
   
3. Make sure the rotor is pointing to the cap hold-down mount nearest the flat side of the housing.
4. Using a long screwdriver, align the oil pump drive shaft in the engine in the mating drive tab in the distributor.
5. Install the distributor in the engine. Make sure the spark plug towers are perpendicular to the centerline of the engine.
6. When the distributor is fully seated, the rotor segment should be aligned with the pointer cast in the distributor base. The pointer will have a -6'' cast into it indicating a 6 cylinder engine. If the rotor segment is not within a few degrees of the pointer, the distributor gear may be off a tooth or more. If this is the case repeat the process until the rotor aligns with the pointer.
7. Install the cap and fasten the mounting screws.
8. Tighten the distributor mounting bolt to 18 ft. lbs. (25 Nm).
9. Engage the electrical connections and the spark plug wires.

You are going to want to check your engine pullys. I replaced battery and starter before I figured out my AC was froze up. If that belt dont turn it will not start. Or even crank over. AW from Mesa Az.

Clean the Throttle Body and MAF. Common fix for rough idle. https://www.google.com/search?q=2002+chevy+astro+clean+throttle+body ..

How To Remove A Broken Spark Plug ' Champion Auto Parts

https://www.championautoparts.com > Tech-Tips > Re... If a spark plug gets broken during the replacement process, it can cause much bigger headaches for the rest of the car. Learn how to remove broken plugs ... Missing: Astro. ‎' Must include: Astro.

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the problem is probably the heater core, it can become clogged with dribris. this stops heat from the engine getting to it and then no heat.

usually a 3/8 allen will do the trick.

Hello ,, I would try swapping relays around in the fuse block. Usually there are at least 4 that are the same ,, just something to try before spending money ,, cheap and easy .

The voltage gauge only says what the battery voltage is. It is entirely possible that the battery's current capability can be severely weak even though the voltage looks normal. An easy check for the start circuit is to turn on the dome light and try to crank the engine. If the dome light doesn't dim and there is no attempt to start, then the battery is not the problem. If the dome light goes very dim or goes out completely, then the battery is too weak to crank the engine. If the battery is not the problem, then since there is no click or anything, the problem could be: (1) Starter (2) Neutral safety switch (3) Ignition switch (4) Start circuit wiring

that could be a timing issue as the vacuum helps with the timing /spark etc