Question about 1986 Chevrolet G30

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Heater core How do you replace the heater core in 1986 Chevy G30 van

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  • Anonymous Mar 25, 2014

    WHERE IS THE SMOG PUMP ON A 1986 CHEVY G30?

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HEATER CORE REPLACEMENT

Posted on Jun 21, 2008

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6ya6ya
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Posted on Jan 02, 2017

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1 Answer

Where is the heater core in my 2002 chevy venture van


Look for smaller coolant lines coming off the back of the block or going into the firewall pretty sure it's in the dash

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Replace a heater core on a 1989 chevy g20


go on line to rock auto parts .com

Sep 03, 2014 | Cars & Trucks

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Diagram of connection of a G30 1986 van carburetor need vacumn hose connection diagram to reconnect carburetor with a 350 engine and quatro jet carburetor


I find this vacuum diagrams for 1986 Chevrolet Truck G30 1 ton Van 5.7L 4BL 8cyl (click over pic for zoom)...

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Fig. 136: 1986 5.7L engine-Federal with automatic transmission (G10, 20 and 30 models)

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Fig. 137: 1986 5.0L and 5.7L engines-California with automatic transmission (G10, 20 and 30 models)

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Fig. 138: 1986 5.7L engine-Federal with manual transmission (G30 heavy duty models)

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Fig. 139: 1986 5.7L engine-Federal with automatic transmission (G30 heavy duty models)

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Fig. 140: 1986 5.7L engine-California with manual transmission (G30 heavy duty models)

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Fig. 141: 1986 5.7L engine-California with automatic transmission G30 (heavy duty models)


Hope this helps; keep us updated.

Jan 20, 2011 | 1986 Chevrolet G20

1 Answer

How do u replace a heater core in a 1994 chevy g20 conversion van


If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired.
Heater Housing
  • The heater housing is usually under the dash and must be removed to gain access to the heater core.
  • Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
f74-01.gif The heater housing is disassembled to get to the heater core. Heater Core
  • Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
  • Remove the heater coolant hoses.
  • Remove the cable and/or vacuum control lines (if equipped).
  • Remove the heater core securing brackets and/or clamps.
  • Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
  • To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.

Dec 23, 2010 | 1994 Chevrolet G20

1 Answer

How to replace a heater core in a 2002 chevy astro van


Heater Core Removal & Installation To Remove:
  1. Drain the engine coolant.
  2. Release and reposition the outlet heater hose clamp at the heater core.
  3. Remove the outlet heater hose from the heater core.
  4. Release and reposition the inlet heater hose clamp at the heater core.
  5. Remove the inlet heater hose from the heater core.
  6. Remove the screws that retain the cover to the heater case assembly.
  7. Remove the straps that retain the heater core to the heater case assembly.
  8. Remove the heater core from the vehicle.
To Install:
  1. Installation is the reverse of removal.
  2. Refill the cooling system.
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Aug 12, 2010 | 2002 Chevrolet Astro

2 Answers

How do i replace heater core


I believe on a 1987 chevy van the heater core should be under the black plastic cover on the firewall on the left hand side as you are standing in front of the van.
I believe you can also get to it under the passenger side dash.
It is NOT fun. Unless you are a seasoned mechanic, I would not attempt it.
Otherwise stop by your local auto center, and get a HAYNES manual, they will be able to show how to.

Mar 02, 2010 | 1987 Chevrolet G20

3 Answers

How to replace front a heater core


HOW TO CHANGE A HEATER CORE IN 1990 AEROSTAR

Oct 26, 2009 | 1990 Ford Aerostar

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Gas in oil


Ok, only two ways the oil can mix with the gas. one is a blown head gaskets. the other would be bad piston rings.

Mar 16, 2009 | 1986 Chevrolet G30

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