cylinder 5 cuts out when it gets warm
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papascrappy
- Posts: 1
- Joined: 14 February 2023
- Year and Model: 2008 V 70
- Location: Parker Florida. U.S.A.
cylinder 5 cuts out when it gets warm
Does anyone have an idea what would cause a single cylinder to misfire only once it gets warm? When I first start the car, it runs great, but after 10 or so minutes number 5 cylinder starts cutting out. I have changed the plug and the coil. Had a water leak a few weeks back, and the steering wheel lock gave me trouble, but that is all the problems I have had.
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volvolugnut
- Posts: 6233
- Joined: 19 January 2014
- Year and Model: 2001 V70
- Location: Oklahoma USA
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Coils can fail when they get hot. Do you have coil 5 fault code?
Try swapping coil 5 to another cylinder and see if the fault moves.
SORRY! I did not read your post well before making comments. Check coil feed wires and grounds for good contact. Is the coil boot cut or coil to plug contact bad?
volvolugnut
Try swapping coil 5 to another cylinder and see if the fault moves.
SORRY! I did not read your post well before making comments. Check coil feed wires and grounds for good contact. Is the coil boot cut or coil to plug contact bad?
volvolugnut
The Fleet:
Volvo: 2001 V70 T5, 1986 244DL, 1983 245DL, 1975 245DL, 1959 PV544, multiple Volvo parts cars.
Mercedes: 2001 E320, 1973 280, 1974 280C, 1989 300E, 1988 300TE, 1979 300TD, parts cars.
2009 Smart Passion
Ford: 1977 F350, 1964 F150 (2), 1938 Tudor Sedan
Farmall tractors: 1956 400 Diesel, 1946 A
And others.
Volvo: 2001 V70 T5, 1986 244DL, 1983 245DL, 1975 245DL, 1959 PV544, multiple Volvo parts cars.
Mercedes: 2001 E320, 1973 280, 1974 280C, 1989 300E, 1988 300TE, 1979 300TD, parts cars.
2009 Smart Passion
Ford: 1977 F350, 1964 F150 (2), 1938 Tudor Sedan
Farmall tractors: 1956 400 Diesel, 1946 A
And others.
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pgill
- Posts: 799
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- Year and Model: 2010 S80, 2008 LR2
- Location: California
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Can you post a picture of the sparkplug that you removed?
It is possible that you have an injector problem.
You didn't say which engine but I will assume that a 2008 V70 is the 3.2 6 Cylinder.
What is the fuel trim for bank 2 (LTFT and STFT)?
Other things to check
1. Check the wiring to the ignition coil for #5 (does the latch work?)
2. Check the PCV to see if it is broken (engine at idle remove the oil fill cap and you should have a very slight vacuum)
3. Check the wiring for the #5 injector (does the latch work?)
Good luck
Paul
It is possible that you have an injector problem.
You didn't say which engine but I will assume that a 2008 V70 is the 3.2 6 Cylinder.
What is the fuel trim for bank 2 (LTFT and STFT)?
Other things to check
1. Check the wiring to the ignition coil for #5 (does the latch work?)
2. Check the PCV to see if it is broken (engine at idle remove the oil fill cap and you should have a very slight vacuum)
3. Check the wiring for the #5 injector (does the latch work?)
Good luck
Paul
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