Hello
Car started acting up a couple weeks ago. Rough when it's idleing and the CEL is lit and blinking, but when I get on it it seems to be much better. Acceleration is good and it rides fine under load. When I back off on it the CEL comes back on and starts blinking then as I accelerate it goes ...

Thanks for your reply and input.
I dont think that's the case but I will double check.

However, just to make sure I understand the power chain, it goes like this correct??

1. Battery to ECC
2. ECC to resistor pack
3. Resistor pack to Blower

So I am stumped.
My blower fan stopped the other day. I have looked at the ECC, resistor pack and the fan itself.
Today I got a used fan at the yard. Tested it with no resistance at the counter and it spun right up.
Went home, put it in, and........................it didnt work. So I started ...

Like this?

http://www.probolt-usa.com/media/catalo ... psu42b.jpg

Thanks everyone for the responses
Diode fix coming later.

So I'm reading info on removing the SAS SYSTEM from operation in the 70s. I have a 1998 XC70 AWD and the other day, in the course of other work and trying to diagnose a lacking power situation, Irealized that the pump was gurgling water. I read up, drilled the holes in the bottom and now it's dry ...

Is it possible to get enough positive pressure due to a broken or blocked Catalytic converter to give the impression that the PCV system is clogged? I have a new PCV system but still getting vapor coming up from the dipstick. Thanks https://www.matthewsvolvosite.com/forums/posting.php?mode=post&f=1#

Hello Volvo people,

I have asked before and was unable to get a response. So I thought I would include a picture to assist you. After a top end rebuild I was unable to find the location to attach this Vac line. I comes off the intake manifold, right side below and to the right of the fuel return ...

Super frustrated with my 1998 v70xc. Did an upper end rebuild with a new head and gasket as well as an entire PCV system replacement. Still have what seems like way too much forced air coming through the top to the point where the top tube keeps blowing off. When it's on tight I am getting pressure ...

What would cause enough PCV to blow the tube off of the head and blow oil all over the top of the head. I made sure it was on there good and tight but after 20 miles I checked it and sure enough it blew off again. New PCV kit installed during a full head gasket and new head replacement. Any help is ...