Question about 1991 Chevrolet Lumina

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Spark plugs stuck in a 1991 chevy lumina 3.1 liter van

The spark plugs are stuck and cannot get them out. Some say it's so corroded that they have to be worked free. What do i do?

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  • casewoman56
    casewoman56 Feb 13, 2012

    When i try to unscrew the plugs the socket just keeps turning and doesn't grip the plugs. Hence cannot get them out.

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  • 3 Answers

Drive car till normal temp is reached. loosen all plugs quickly, but carefully, by spraying the base of each plug with a water bottle. this should release the threads enough to unstick the plugs.

Posted on Feb 13, 2012

Testimonial: "Thank you for the time you took to answer me. We had to use a torch to unstick 2 of them. Now it won't start at all. I think I bought a money pit."

  • casewoman56
    casewoman56 Feb 13, 2012

    when i try to turn them loose with the socket, the socket doesn't have anything to grip and keeps turning. i will try what you said and see if it works. i have been told that it is so corroded in the holes that i have to keep working it till i get all the crud out.

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SOURCE: 1991 chevy lumina 3.1 liter sadan

Check that you're getting spark to your plugs and fuel to your injectors. If so, my first guess would be to check your timing belt.

Posted on Aug 01, 2008

1MINTZ
  • 14 Answers

SOURCE: 1991 lumina high rev

is it a 3.1v6 ? check/replace your plgs wires check/replace the egr valve

Posted on Sep 17, 2008

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SOURCE: changing spark plugs 95 chevy lumina van

you will have to take off the coil packs and move them out of the way. then go in from the top. its kinda tight but just move whatever else is in the way

Posted on Jan 09, 2009

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SOURCE: HOW DO FIX A CODE #42 ON 1991 CHEVY TRUCK

I HAVE A 92 SILVERADO WITH CODE 42 TRUCK SURGES AT VARIOUS SPEED CAN YOU HELP

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ZJLimited
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SOURCE: how do I remove & replace radiator on 1991 Lumina?

GM Lumina/Grand Prix/Cutlass Supreme/Regal 1988-1996
Radiator - REMOVAL & INSTALLATION

  1. Disconnect the negative battery cable.
  2. Remove the air cleaner, mounting stud and duct.
CAUTION When draining the coolant, keep in mind that cats and dogs are attracted by ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or inPuddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old. To avoid being burned, do NOT remove the thermostat housing cap while the engine is at normal operating temperature. The cooling system will release scalding fluid and steam under pressure if the cap is removed while the engine is still hot.
  1. Properly drain the engine cooling system into a suitable container.
  2. Remove the coolant recovery reservoir.
  3. Remove the engine strut brace bolts from the upper tie bar and rotate the struts and brace rearward.
To prevent shearing of the rubber bushing, loosen the bolts on the engine strut before swinging the struts.
  1. Remove the air intake resonator mounting nut, upper radiator mounting panel bolts and clamps. Tighten to 89 inch lbs. (10 Nm).
  2. Detach the cooling fan electrical connectors.
  3. Remove the upper radiator mounting panel with the fans attached or the fan assembly, as applicable.
  4. Disconnect the upper and lower radiator hoses.
  5. Detach the low coolant sensor electrical connector, then remove the sensor, if used.
  6. If equipped, remove the automatic transaxle cooler lines from the radiator.
  7. Unfasten any necessary retainers, then remove the radiator.
To install:
If a new radiator is being used, transfer all necessary fittings from the old radiator to the new one.
  1. Position the radiator into the lower insulator pads
  2. If equipped, attach the automatic transaxle cooler lines to radiator.
  3. Install the low coolant sensor and attach the electrical connector.
  4. Connect the upper and lower radiator hoses and secure with the clamps.
  5. Install the upper radiator mounting panel with the fans attached or install the fan assemblies. Tighten the fan mounting bolts to 53 inch lbs. (6 Nm). Connect the fan wires
  6. Install the mounting panel bolts and clamps. Tighten the bolts to 89 inch lbs. (10 Nm).
  7. Install the coolant recovery bottle.
  8. Swing the engine strut to the proper position and tighten the bolts.
  9. Refill the engine with the specified amount and type of engine coolant.
  10. Install the air cleaner, then connect the negative battery cable.
  11. Start the engine and check for coolant leaks.

Hope helps with this (remember comment and rated this).

Posted on May 28, 2010

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1991 chevy lumina 3.1 liter sadan


Check that you're getting spark to your plugs and fuel to your injectors. If so, my first guess would be to check your timing belt.

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