Volvo S40 - Answered Questions & Fixed Issues - Page 5

use a meter and test the connections ,lines ,pump for damage or short

Check CEM module.

Sounds like dirty battery terminals, make sure they are shiny clean. if ok see if the motor can be turned by hand , a clicking sound often points to the following dirty terminals, flat battery, stuck starter motor.

Most cars you can do without lifting engine make sure don't do anything wrong for nothing.

Clean throttle body before replacement, particularly sensor orifices.

Check if the left and right hight adjustable stops are to high. If you put pressure above the latch and it works. This will most probably be the issue.

https://www.matthewsvolvosite.com/volvo-1999-and-newer-codes

12345 is the firing order

On the left side or passenger side it has a green cap Regards Chris

1 2 3 4 5 is your firing order staining at the engine from the front Regards Chris

one unit that operates ratio changes and is connected to the engine is that vacuum operated actuator on the transmission it is possible that that unit is failing , vacuum hose is leaking and that will cause ratio changes as the vacuum varies run the fault codes to check for wiring problems or VSS or TCM problems as well

the variable timing wheel should be on the inlet cam. the timing marks should align on cams upper of rear inner belt cover the crank upper of oil pump housing

Sorry we are not an appraisal service.

I WORK ON VOLVO TRUCKS BUT I HAVE A GOOD UNDERSTANDING HOW THESE THINGS WORK, I WOULD REPLACE THE CRANK AND CAM SPEED SENSORS.

Most euro cars are high tech enough to reset themselves after a component is replaced. How ever some like Mercedes require a reset with a scanner.

Has the blub been tested? Have you checked the headlight connector for power (12 volts) and a good ground (less than 5 Ohms) when it is turned on? Do that and get back to me

Check vacuum leaks and fuel injection system

What year and what engine capacity is your volvo? Try putting in as much information as possible when asking a question, in that way you will get answers pretty soon.

If we're talking about an automatic transmission, your symptoms indicate a valve body problem. The transmission control module or a shift solenoid inside the transmission can be faulty too.

wow just wow.