Question about 1998 Chevrolet Astro

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Leak in coolant hose next to alt. 1998 astro van it has front & rear heat.is this plastic valve replaceable if so is it dealer item?

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You can pick up at scrap yard for less then half cost and in taken it out you will know how to put it back in

Posted on Feb 18, 2009

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2 Answers

Condensation in rear of transit van


if this van has heat in the rear, Id say you have a coolant leak.check antifreeze, and follow hoses back to the rear. look for wet spots on hoses

Jan 14, 2013 | Ford Transit Connect Cars & Trucks

1 Answer

Coolant leak leaking on front passenger side near wheel well almost under the engine


check all your hoses run vehicle for awhile the inspect hose in this area. look for obvious things next check at the engine to see if a freeze plug is leaking then inspect you heater assembly the core may be leaking I'm leaning toward a hose or shut off valve

Jul 04, 2012 | 2001 Ford Windstar

2 Answers

The air conditioning does not blow through front vents but through windshield vents, what is the problem?


This is a common problem on all Astro/Safari vans. The problem is a leak in the vaccum lines that control the vaccum switch responsible for changing air direction from the defrosters, dash vents, floor vents..etc.
Many of the problems that plaque the Astro/Sarfari vans and many other "Mini-Vans" is the build up of excess heat in the engine compartment. It\'s a tight place to put a V6-4.3 Vortec engine and the heat generated bounces back and cooks everything on the engine (coils, modules, sensors, wiring, and of course plastic vaccum hoses). No need to mess with your switches or anything behind the dash -- replace those thin plastic vaccum hoses to operate the vaccum switch (located just below the A/C canisters, to the right of the heater/ac blower housing) and your dash switches will magically send heated or cooled air where you want it.

Oct 25, 2010 | 2003 GMC Safari

1 Answer

I need to find where the coolant temperature sensor is located on my 1998 Chevy Astro van?


coolant temperature sensor is located next to thermostat housing at front of engine in intake manifold you will see it right next to top radiator hose but this one reports to pcm the one for the gauge in dash or light is on the drivers side cylinder head you will see one little wire going to a sensor screwed in head near second plug back on drivers side

Jun 19, 2010 | 1998 Chevrolet Astro

2 Answers

My van is over heating there is coolant and water in the radiator it started leaking underneath towards where the front passenger seat


The problem sounds like either the inlet or outlet hose to the heater core is cracked or split. Or the heater core itself is at fault. Need to inspect the hoses from engine to the firewall going to the heater core for damage. If no leak from the outside then problem will be on the inside under the dash. Hope this will help you.

May 31, 2010 | 1998 Dodge Caravan

3 Answers

My radiator coolant dripping very fast by the muffler pipe beside the transmission.


your vehicle has a service bulletin on the metal heater hoses; they corroide and leak. They run from your heater core (front of van) to the rear most of your van by the spare tire (rear heating). This happened to mine, I had to replace the same. This is a known common problem.

Jan 21, 2010 | 2004 Kia Sedona

2 Answers

Air, no heat '98 Astro. No leaks, engine


It sounds to me that you may have 2 problems. 1). Air Lock in the Heater Core. 2). Inactive Heat Damper in the Plenum.

But since you state that the Heater Hoses do not get warm that is indicative of an Air Lock in the Heater Core. This is a relatively simple fix. It is best performed COLD but requires a method of pressurizing the Cooling System. All reputable Auto Parts stores Sell and/or Rent Pumps that temporarily replace the Radiator Pressure Cap for Leak tests and curing Air Lock. The Collant Level must be filled FULL then pressurized and then loosening the Highest Heater Hose at the Firewall so that Air and a Small Amount of Coolant escapes. Once all the Air has escaped tighten the Heater Hose Clamp, remove the Pressure Pump, Restore the Collant Level to FULL, re-install the Pressure Cap and Start the Engine. As it Warms up you should be able to feel coolant running through the Heater Hoses and they should become warm.

Dec 07, 2009 | 1998 Chevrolet Astro

2 Answers

Coolant leak at intake 1994 Buick LeSabre 3.8 ltr


There are several areas of possible leakage. One is the hose and plastic outlet from the intake manifold on the passenger side of the engine. The hose runs low, underneath the alternator. The plastic outlet cracks, the hose gets old, the clamps on the hose can also be loose. The replacement outlet from the dealer is steel, not plastic.
Another possibility for leakage is on the driver's side of the intake manifold. Underneath the air inlet is a metal cover on the end of the intake manifold. This covers the coolant passages at the end of the intake. Mine was oozing antifreeze..you don't have to pull the intake to replace this.
The other place for leaks is the intake itself..requiring removal of the intake. I've done this...I don't think it is that bad of a job. However, if you put in a new intake, don't forget to put in a pcv valve..it fits under a small cover at the right rear of the intake manifold.

Nov 21, 2009 | 1994 Buick LeSabre

2 Answers

2000 Astro van - vent door that controls flow of A/C to blow out of dashboard vents does not function. A/C and heat work. All other pneumatic actuators seem to work. Repalced the specific vent door...


The problem is a 1/8 diameter hose that runs from the front of the engine over the top and connects at the rear of engine on the drivers side. It is a vacuum hose #GM15967970 It cost about $6.22 at your GM dealer. Hope this helps Bill. My E-Mail is Uflyups@aol.com
This was posted on a problem with a 2002 astro, I do believe it is the same fix. A simple vacuum hose, It is difficult to route through the engine

Jul 25, 2008 | 2002 Chevrolet Astro

2 Answers

Radiator fluid evaporation or leak?


Just had the same problem! I have never had any problems out of my van and just had all fluids checked a month ago before going on vacation. One day it just started overheating and I had to urn the heater to pull the heat off of the motor to keep it cool enough to get it home. I put over a gallon of coolant in it and filled up the reserve tank. The next morning I took my kids to school about 4 miles away and my van started to miss really bad and the check engine light would come on every time I pressed down on the accelerator. I took it home and opened the hood and the reserve coolant tank was empty in just 8 miles of travel so I called the dealer and had them pick it up on a rollback since it is still under warranty. The dealer said it was a leak in the rear heater pipes that circulate antifreeze/coolant to the rear of the vehicle to supply heat for the rear heater and the miss was from the heat of the engine burning the spark plugs. So far it is a dealer item only and parts and labor are about $352. The vehicle will not leave any puddles when running while in park, only leak while moving, so they tell me. The dealer bypassed it somehow until my parts come in and my van drives fine. The pipes (maybe hoses,unsure) are actually a series of 3 that must be replaced. I may try to change them myself if they are just hoses.

Jul 11, 2008 | 2004 Kia Sedona

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