Spark plug change

Tiny
RIEBE123
  • MEMBER
  • 2011 KIA SORENTO
  • 3.5L
  • V6
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
I need to change the spark plugs, I understand the intake needs to be removed to get at the three plugs in the rear of the engine. My question is, how involved is this? How much time should I plan for? How many bolts must be removed? When I replace the gasket what is the gasket for or what set do I order?
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Monday, September 10th, 2018 AT 3:12 PM

6 Replies

Tiny
DANNY L
  • EXPERT
Hello, I am Danny.

Yes, you do have to remove the intake manifold to gain access to the rear three spark plugs. It will take you roughly three hours to complete as the book calls for 2.2 hours. The gasket you need to replace is simply called the intake manifold gasket. The intake manifold itself is held on by nine bolts however, a bunch of accessories will need to be removed. If you feel confident in performing this I can attach step-by-step pictures if you like. Hope this helps and thanks for using 2CarPros.
Danny-
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Monday, September 10th, 2018 AT 5:23 PM
Tiny
DAVE1310
  • MEMBER
Thanks for the response. Yes, I know I can change the plugs. Please send me the step by step instructions. I really appreciate your help again, it is my daughters vehicle and I want to help her out.
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Wednesday, September 12th, 2018 AT 12:22 PM
Tiny
DAVE1310
  • MEMBER
Please send me the step by step instructions for the removal/replacement procedure.
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Thursday, September 13th, 2018 AT 2:32 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi and thanks for using 2CarPros. Com.

Here are the directions for removing the intake manifold to access the plugs in the rear. All attached pictures correlate with these directions.

_______________________________

REPAIR PROCEDURES
Removal and Installation

1. Disconnect the battery negative terminal.
2. Remove the engine cover (A).
3. Remove the air duct (B).
4. Remove the air cleaner assembly.
(1)Disconnect the breather hose (A) and the BARO sensor connector (B).
(2)Disconnect the air intake hose and then remove the air cleaner assembly (C).

Tightening torque
Hose clamp bolt:
2.9 - 4.9N.M (0.3 - 0.5kgf.M, 2.2 - 3.6lb-ft)
Air cleaner assembly bolts:
7.8 - 9.8N.M (0.8 - 1.0kgf.M, 5.8 - 7.2lb-ft)
5. Remove the under cover.
6. Loosen the drain plug (A), and drain the coolant. Remove the radiator cap to speed draining.
7. Disconnect the wiring connectors, harness clamps and hoses from the engine.
(1)RH front, rear oxygen sensor connector (A).
(2)VIS connector (B).
(3)RH exhaust camshaft OCV connector (C).
(4)RH ignition coil connector (D).
(5)RH injector connector (E).
(6)VCM connector (F).
(7)Power steering switch connector (G).
(8)LH exhaust camshaft OCV connector (A).
(9)LH/RH intake camshaft OCV connector (B).
(10)Oil pressure switch connector (C).
(11)Knock sensor connector (D).
(12)VPS connector (E).
(13)Condenser connector (F).
(14)Ground (G).
(15)Disconnect LH front oxygen sensor connector (A).
(16)Disconnect alternator connector (A).
(17)LH ignition coil connectors (A).
(18)LH injector connectors (B).
(19)VIS connector (C).
(20)LH intake CMPS connector (D).
(21)MAP sensor connector (A).
(22)PCSV connector (B).
(23)RH intake CMPS connector (A)
(24)Knock sensor connector (B)
(25)OTS connector (C)
(26)ETC connector (D)
(27)RH exhaust CMPS connector (E)
8. Disconnect the PCSV hose (A), fuel hose (B) and throttle body coolant hoses (C).
9. Remove the throttle body mounting bolt (D).

Tightening torque:
18.6 - 23.5N.M (1.9 - 2.4kgf.M, 13.7 - 17.4lb-ft)
10. Disconnect the PCV hose (A) and remove the surge tank stay (B).

Tightening torque :
27.5 - 31.4N.M (2.8 - 3.2kgf.M, 20.3 - 23.1lb-ft)
11. Remove the surge tank (A).

Tightening torque:
9.8 - 11.8N.M (1.0 - 1.2kgf.M, 7.2 - 8.7lb-ft)
12. Remove the delivery pipe & injector assembly (A).
13. Remove the intake the manifold (A).
NOTE:
Cover the inlet of cylinder head with a clean cloth or vinyl cover to prevent foreign materials from entering the engine.

14. Installation is reverse order of removal.
Tighten the intake manifold bolts and nuts, in several passes as below.

Tightening torque
Step 1: 3.9 - 5.9N.M (0.4 - 0.6kgf.M, 2.9 - 4.3lb-ft)
Step 2:Nut- 18.62 - 23.52N.M (1.9 - 2.4kgf.M, 13.74 - 17.36lb-ft)
Bolt -26.5 - 31.4N.M (2.7 - 3.2kgf.M, 19.5 - 23.1lb-ft)
Step 3: Repeat 2nd step twice or more.

A - h : 1st step order
1 - 8 : 2nd step order
_______________________________________
I hope this helps. Let us know if you have other questions.

Take care,
Joe
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Friday, September 14th, 2018 AT 8:48 PM
Tiny
RIEBE123
  • MEMBER
Thanks.
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Saturday, September 15th, 2018 AT 12:31 PM
Tiny
DANNY L
  • EXPERT
You are welcome!
Let us know how it goes. Thanks again for using 2CarPros.
Danny-
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Saturday, September 15th, 2018 AT 1:47 PM

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