Volvo no start, it's really flooding out THROTTLE BODY CLEANING????

  • Thread starter Thread starter chris mears
  • Start date Start date
C

chris mears

Yup, our '88 245 is still very not starting.

I'm thinking about trying this theory others have had regarding
cleaning the throttle body on the car.

Before, when the car ran symptoms that pre-cluded this no-start
included:
-very, very poor fuel mileage.
-hard starts
-uneven idle (missing). This would even out once car reached operating
temperature.
-dark black exhaust, very noticeable (unburned fuel, big time)
-the engine would stagger, almost stall, after running at high RPM. A
great example would be if you revved the engine while parked. While
RPM lowered, it almost stalled before it quit.
-Adjusting the idle speed screw does nothing.

Now...
-injectors are working
-new spark plugs, cap, rotor
-plugs are soaked with fuel, nothing is burning.
-cranks really well, not even close to catching.

I see alot of mention of trying to clean out the throttle body, I may
give this a try, any ideas??? Right now I'm so frustrated I'm thinking
of installing the engine+tranny from my old 1979 in this car, then at
least I can trouble shoot something I understand (B21A vs B230 in newer
car...)

Thanks for the help, I really appreciate it!

Chris Mears
Charlottetown, PEI, Canada
 
Yup, our '88 245 is still very not starting.

I'm thinking about trying this theory others have had regarding
cleaning the throttle body on the car.

Before, when the car ran symptoms that pre-cluded this no-start
included:
-very, very poor fuel mileage.
-hard starts
-uneven idle (missing). This would even out once car reached operating
temperature.
-dark black exhaust, very noticeable (unburned fuel, big time)
-the engine would stagger, almost stall, after running at high RPM. A
great example would be if you revved the engine while parked. While
RPM lowered, it almost stalled before it quit.
-Adjusting the idle speed screw does nothing.

Now...
-injectors are working
-new spark plugs, cap, rotor
-plugs are soaked with fuel, nothing is burning.
-cranks really well, not even close to catching.

I see alot of mention of trying to clean out the throttle body, I may
give this a try, any ideas??? Right now I'm so frustrated I'm thinking
of installing the engine+tranny from my old 1979 in this car, then at
least I can trouble shoot something I understand (B21A vs B230 in newer
car...)

Thanks for the help, I really appreciate it!

Chris Mears
Charlottetown, PEI, Canada
Click to expand...

Compression test, verify ignition function... Timing chain?
 
Yup, our '88 245 is still very not starting.

I'm thinking about trying this theory others have had regarding
cleaning the throttle body on the car.

Before, when the car ran symptoms that pre-cluded this no-start
included:
-very, very poor fuel mileage.
-hard starts
-uneven idle (missing). This would even out once car reached operating
temperature.
-dark black exhaust, very noticeable (unburned fuel, big time)
-the engine would stagger, almost stall, after running at high RPM. A
great example would be if you revved the engine while parked. While
RPM lowered, it almost stalled before it quit.
-Adjusting the idle speed screw does nothing.

Now...
-injectors are working
-new spark plugs, cap, rotor
-plugs are soaked with fuel, nothing is burning.
-cranks really well, not even close to catching.

I see alot of mention of trying to clean out the throttle body, I may
give this a try, any ideas??? Right now I'm so frustrated I'm thinking
of installing the engine+tranny from my old 1979 in this car, then at
least I can trouble shoot something I understand (B21A vs B230 in newer
car...)

Thanks for the help, I really appreciate it!

Chris Mears
Charlottetown, PEI, Canada
Click to expand...
Disconnect the O2 sensor. If it's shorted to ground it will force the
fuel computer full rich.

Pull the vacuum hose off the fuel pressure regulator and be sure that
the diaphragm is not ruptureg and dumping fuel directly into the intake
manifold.

Bob
 
Yup, our '88 245 is still very not starting.
Click to expand...
I'm thinking about trying this theory others have had regarding
cleaning the throttle body on the car.
Click to expand...
Before, when the car ran symptoms that pre-cluded this no-start
included:
-very, very poor fuel mileage.
-hard starts
-uneven idle (missing). This would even out once car reached operating
temperature.
-dark black exhaust, very noticeable (unburned fuel, big time)
-the engine would stagger, almost stall, after running at high RPM. A
great example would be if you revved the engine while parked. While
RPM lowered, it almost stalled before it quit.
-Adjusting the idle speed screw does nothing.
Click to expand...
[ ... ]

Checked the air filter? If it's badly clogged, it can cause a rich
condition.

Also check the catalytic converter; it could be clogged.


Gary
 
chris said:
Yup, our '88 245 is still very not starting.
Click to expand...
Now...
-injectors are working
-new spark plugs, cap, rotor
-plugs are soaked with fuel, nothing is burning.
-cranks really well, not even close to catching.
Click to expand...


The one thing I'm not seeing mentioned here is the very first thing I
would have checked, the air mass meter. Try unplugging it and see if the
engine starts, if it does then that part is bad.
 
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