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Rear PCV line broke (runs under intake manifold) when changing spark plugs, now car runs very rough, is this the problem?

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Engine runs rough and gets worse when accellerating


PROBLEM TROUBLE AREA
Rough idle, stalls or
hesitate on acceleration :
.Spark plug faulty
. High-tension cords faulty
Ignition problems:
• Ignition coil
• Igniter
• Distributor
. Incorrect ignition timing
Vacuum leaks:
. PCV valve and line.. .
. EGR line..
. Intake manifold.
• Throttle body
• ISC valve
• Brake booster line

• Throttle body
• Brake booster line
. Incorrect idle speed
. Reset timing
. Adjust valve clearance
. Check fuel system . Check air cleaner
. Incorrect valve clearance
. EFI system problems
. Low compression


Dec 12, 2013 | 1989 Toyota Camry

1 Answer

98 expedition 5.4 Had mechanic diagnose leaky intake with smoke test. I replaced and replaced plugs and vacuumed line and Pcv also bypassed adapter for coolant temp sensor cause it broke and dealer wants...


coolant under the manifold is a hole ( corrosion)and if water is coming out then uncontrolled air can get in giving you the running problems. Have a compression test done to check for blown head gasket. Have a coolant pressure test done to find the leaks

Jun 13, 2013 | Cars & Trucks

1 Answer

Car idles fine when first started then starts to run rough. Also there is a delay when I push on the accelerator.


Check the coil and inginition module, they may be failing as the engine warms up. Also check you have the correct gap on the new spark plugs.
hope that helps

Terry

Nov 25, 2012 | 1986 Ford Thunderbird

1 Answer

My jeep wont stay on but i have to give it gas to turn it on


replace spark plugs wires,problem could be ignition timing,idle speed too low.intake manifold vacuum leak,check all vacuum lines on intake check pcv valve make sure its getting vacuum and the vacuum line not disconnected or cracked broken if pcv is not working engine wont run correctly.

Oct 03, 2012 | 1988 Jeep Cherokee

1 Answer

I have a 94 toyota corolla dx 1.8 ,My Q's is that i put all new vacume ose lines and pcv valve about 3 mnts ago, but just reccently my wife notice the was having poor gas milage& running rough at...


clean the carb, or the throttle body . God only knows what all has been sucked in through that broken hose , but I would check the electrical end of it , Plugs, rotor, cap, wires, more than not, that is the rough idle problem,, check the air filter too

Jul 12, 2011 | 1994 Toyota Camry

1 Answer

Where would the pvc value be on a 300 chrysler 2006? also where would the spark plugs be located?


Positive Crankcase Ventilation (PVC) Valve Removal & Installation 5.7L Engine To Remove:
    1.The PCV valve is mounted into the top/right side of the intake manifold.

    2.The PCV valve is sealed to the intake manifold with two O-rings.

    3.Free the PCV valve by rotating counter-clockwise 90 degrees until the locating tabs align with the openings on the manifold.

    4.Remove the PCV valve by pulling straight up from intake manifold and clearing the tabs.

    5.Check the condition of two valve O-rings.
To Install:
  1. Clean the PCV valve opening on the intake manifold.
  2. Inspect the PCV valve O-rings. Replace if suspect.
  3. Apply engine oil to the two O-rings.
  4. Place the PCV valve into intake manifold.
  5. Rotate the valve 90 degrees clockwise for installation.
6.1L Engine To Remove:
  1. The PCV valve is threaded into the right-front corner of the intake manifold.
  2. Remove the rubber hose from the PCV valve.
  3. Unscrew the PCV valve from the intake manifold.
To Install:
  1. Clean the PCV valve opening on the intake manifold.
  2. Check the condition of the PCV valve O-ring. Replace if suspect.
  3. Check the condition of the PCV valve threads and clean if necessary.
  4. Apply engine oil to the O-ring.
  5. Install the PCV valve into intake manifold.
  6. Install the rubber hose to the PCV valve.
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The spark plugs should lead to the coil pack via a spark plug wire but may be hidden by a plastic cover.

The following details the ignition coil changing on the Chrysler 300:

2.7L Engine To Remove:
  1. Disconnect the negative battery cable.
  2. Remove the intake manifold.
  3. Use compressed air to clear the area around the ignition coil and spark plug.
  4. Disconnect the electrical connector from the ignition coil.
  5. Remove the two fasteners securing the ignition coil.
  6. Remove the ignition coil.
To Install:
  1. Install the ignition coil.
  2. Tighten the fasteners to 55 in-lb (6.2 Nm).
  3. Connect the electrical connector to the ignition coil.
  4. Install the intake manifold.
  5. Connect the negative battery cable.
3.5L Engine To Remove:
  1. Disconnect the negative battery cable.
  2. Remove the intake manifold.
  3. Use compressed air to clear the area around the ignition coil and spark plug.
  4. Disconnect the electrical connector from the ignition coil. NOTE: Loosen the ignition coil fasteners by alternating back and forth. Do not lose the spacers under the coil when loosening the fasteners.
  5. Remove the two fasteners securing the ignition coil.
  6. Remove the ignition coil.
To Install:
NOTE: Tighten the ignition coil fasteners by alternating back and forth. Do not lose the spacers under the coil when installing the coil.
  1. Install the ignition coil.
  2. Tighten the fasteners to 60 in-lb (6.7 Nm).
  3. Connect the electrical connector to the ignition coil.
  4. Install the intake manifold.
  5. Connect the negative battery cable.
5.7L Engine (2005) To Remove:
NOTE: Carefully note the position of each spark plug cable before disconnecting them so they can be installed in their original positions to prevent misfire.
NOTE: The throttle body intake air duct or intake air box may need to be removed to gain access to certain ignition coils.
  1. Disconnect the electrical connector from the ignition coil.
  2. Remove the secondary ignition cable from the coil.
  3. Use compressed air to clear the area around the ignition coil.
  4. Remove the two fasteners securing the ignition coil. Bolts are retained to coil.
  5. Remove the ignition coil. Pull with a slight twisting motion to help release the boot seal with the spark plugs.
To Install:
NOTE: Apply a light film of dielectric grease to the inside of the coil boots before installation.
  1. Clean area around spark plug and coil mounting area with compressed air.
  2. Install the ignition coil.
  3. Tighten the fasteners to 105 in-lb (12 Nm).
  4. Connect the electrical connector to the ignition coil.
  5. Connect the secondary ignition cable to the coil.
  6. Install the air duct or air box if removed.
Ignition coil mounting bolts (5.7L & 6.1L engines) chry-02-57-263.gif

5.7L (2006) & 6.1L Engine To Remove:
NOTE: Each ignition coil, mounted on the valve cover, fires two spark plugs at each cylinder.
  1. Disconnect the negative battery cable.
  2. Use compressed air to clear the area around the ignition coil and spark plug.
  3. Disconnect the electrical connector from the ignition coil.
  4. Remove the two fasteners securing the ignition coil.
  5. Remove the ignition coil. Pull with a slight twisting motion to help release the boot seal with the spark plugs.
To Install:
NOTE: Apply a light film of dielectric grease to the inside of the coil boots before installation.
  1. Install the ignition coil.
  2. Tighten the fasteners to 105 in-lb (12 Nm).
  3. Connect the electrical connector to the ignition coil.
  4. Connect the negative battery cable.
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Sep 24, 2010 | 2005 Chrysler 300

1 Answer

Hi, I need to replace the 3 rear spark coils and spark plugs. What is the easiest way to do this? Remove the Intake manifold? Aloha, Jim


It's hard but possible to do that without removing intake manifold , if you don't have experience and right tools , probably removing the intake is easiest way.
If you want to try hard way , you need to clear some room for your hands by taking vacuum lines out, that go to throttle body and throttle cable with bracket (two 10mm heads bolt) , on the other side of manifold take out pcv hose (just pull it out from intake manifold and turn it out of your way.don't worry about clamp , it will come out and go back the same way when you push it in)
The worst part of this job without removing intake manifold is disconnecting harness plugs from coils and braking loose spark plugs.(Practice first on front harness connectors.)
Good luck.

May 25, 2010 | 1994 Lexus Es 300

2 Answers

2001 FORD FOCUS IDEALS ROUGH


This is only a guess, because rough idle can be due to an infinity of reasons. On the Focus, assuming that the spark plugs and wires are all good (check that the wires are seated securely), then very often this is due to a problem with the vacuum lines or the Idle Air Control (IAC) valve. With the engine running, listen closely for any tell-tale hissing sound and try to locate it. Check that the vacuum hoses are all in good condition and that they are securely in place. The IAC is a little more complicated to check. Its job is to let air in when the throttle is closed. If it is not opening as it should then the engine will idle rough. One thing you can try is to remove the IAC entirely, leaving an opening for air to get into the intake manifold. If the engine idles better with the IAC removed, you will know that the IAC has a problem. It could be a problem with the IAC itself or with its circuit. Good luck, if you have any more questions let me know.

Mar 29, 2010 | 2001 Ford Focus

2 Answers

2003 Town and country low power and low MPG


check for frozen calipers,e-brake sticking. clogged cat/or ****.

Nov 17, 2008 | 2003 Chrysler Town & Country

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