QUOTE (ssgnai @ Jan 9 2010, 04:51 PM) <{POST_SNAPBACK}>This morning my daughter's 1996 850 Turbo (105,000 miles) wouldn't accelerate past 2000 rpm, meaning it barely moves. I'm new to Volvos, but not cars. I opened the hood and actuated the accelerator mechanism. I noticed the transverse rubber tube just behind the radiator that carries air collapses when the engine revs. It appears that the air goes through the radiator area (to warm it I presume) and is part of the turbo assembly (but I could be wrong about that). I disconnected the tube to test without and the engine died.

I searched here in the forum using word combinations I thought would work, and didn't find help (yet). The closest I came was an MAF issue.

Can someone help me understand what is happening, what I should check and/or what to do with it (besides take it to the dealer

)?

Thanks,

Steve

Can you take a picture of the area where the hose is?

 

QUOTE (ssgnai @ Jan 9 2010, 04:51 PM) <{POST_SNAPBACK}>This morning my daughter's 1996 850 Turbo (105,000 miles) wouldn't accelerate past 2000 rpm, meaning it barely moves. I'm new to Volvos, but not cars. I opened the hood and actuated the accelerator mechanism. I noticed the transverse rubber tube just behind the radiator that carries air collapses when the engine revs. It appears that the air goes through the radiator area (to warm it I presume) and is part of the turbo assembly (but I could be wrong about that). I disconnected the tube to test without and the engine died.

I searched here in the forum using word combinations I thought would work, and didn't find help (yet). The closest I came was an MAF issue.

Can someone help me understand what is happening, what I should check and/or what to do with it (besides take it to the dealer

)?

Thanks,

Steve

Steve, so when you say that the car won't go passed 200 rpm, you mean it will not rev passed 2000? Or does the car not want to drive.... like it is in a very low gear?

 

QUOTE (SeaMike @ Jan 10 2010, 01:19 PM) <{POST_SNAPBACK}>Steve, so when you say that the car won't go passed 200 rpm, you mean it will not rev passed 2000? Or does the car not want to drive.... like it is in a very low gear?

I meant to say it won't rev past 2000 rpm in park. I think I can tell from other posts that the hose will have to be replaced. It is right behind the top of the radiator and connects to the radiator assembly on one end and down near the driver's side of what appears to be the intake manifold, although its a bit hard to see. When I actuate the accelerator, it clearly collapses. I assume that is NOT normal behavior. It seems like the rev limits are air or fuel restriction. The engine does not idle roughly.

If you'd still find a picture useful, I'll take one.

At this point I plan to replace the hose in the morning from the dealer parts counter and see what's next.

Any other ideas?

 

QUOTE (SeaMike @ Jan 10 2010, 01:19 PM) <{POST_SNAPBACK}>Steve, so when you say that the car won't go passed 200 rpm, you mean it will not rev passed 2000? Or does the car not want to drive.... like it is in a very low gear?

Sorry, I meant to add that this rev limit also then affects acceleration, as in, it won't move well. I haven't driven it far enough to know if it will actually go through the gears.

Thanks!

Steve

 

QUOTE (ssgnai @ Jan 10 2010, 03:35 PM) <{POST_SNAPBACK}>Sorry, I meant to add that this rev limit also then affects acceleration, as in, it won't move well. I haven't driven it far enough to know if it will actually go through the gears.

Thanks!

Steve

Has the Oil Trap ever been changed?

 

QUOTE (SeaMike @ Jan 10 2010, 08:13 PM) <{POST_SNAPBACK}>Has the Oil Trap ever been changed?

I've only had the car for about 9k miles, so I'm not sure. If there is an article or link on it, I'm happy to look into it. Any ideas?

Weird thing. Tonight, I told my daughter to go out and try it, and she came in and claimed its healed. I wonder if there is a condensation & freezing problem that went on. Up until today, we've had several days with 15 degrees as the high and -5 as the low. Is there a vent hole that could have gotten condensation during operation and then frozen at night? Today the temp went to 38 and the car sat in the sun. (I saw a post from someone who believed they had a similar problem.

I really appreciate you jumping and trying to help me. I did that many times on another list with new (to vintage) BMW owners for the 10 years I owned one.

Steve

 

QUOTE (ssgnai @ Jan 10 2010, 09:02 PM) <{POST_SNAPBACK}>I've only had the car for about 9k miles, so I'm not sure. If there is an article or link on it, I'm happy to look into it. Any ideas?

Weird thing. Tonight, I told my daughter to go out and try it, and she came in and claimed its healed. I wonder if there is a condensation & freezing problem that went on. Up until today, we've had several days with 15 degrees as the high and -5 as the low. Is there a vent hole that could have gotten condensation during operation and then frozen at night? Today the temp went to 38 and the car sat in the sun. (I saw a post from someone who believed they had a similar problem.

I really appreciate you jumping and trying to help me. I did that many times on another list with new (to vintage) BMW owners for the 10 years I owned one.

Steve

Oil Trap (PVC)
http://www.lakesidedp.com/uploadpics/pcv/

A easy way to tell if the car may have issues with the PVC is:

1. Start and car and let it get to operating temperature.
2. With the car running, open the hood, pull the oil dipstick up about 1 inch.
3. Is there any smoke, or air pressure coming out of it rapidly?
4. Shut the car off, pull the dipstick out completely and inspect it, is there any white foam or rust on it?

How many miles are on the car?

That hose that collapsed....must still be replaced, collapse means the walls must be getting soft.

Can you take that picture of that area and send it to me...or post it?

Thanks

 

QUOTE (SeaMike @ Jan 10 2010, 11:23 PM) <{POST_SNAPBACK}>Oil Trap (PVC)
http://www.lakesidedp.com/uploadpics/pcv/

A easy way to tell if the car may have issues with the PVC is:

1. Start and car and let it get to operating temperature.
2. With the car running, open the hood, pull the oil dipstick up about 1 inch.
3. Is there any smoke, or air pressure coming out of it rapidly?
4. Shut the car off, pull the dipstick out completely and inspect it, is there any white foam or rust on it?

How many miles are on the car?

That hose that collapsed....must still be replaced, collapse means the walls must be getting soft.

Can you take that picture of that area and send it to me...or post it?

Thanks

Very helpful set of links, thanks!

I ordered the hose from Groton (25% of the dealer's price to me) and the car drove 20 miles today without issue (although without turbo boost really). While at the dealer, they printed me a service history, so I have some idea of what I need to do to bring it up to date. Looks like clean the PCV and PTC, new plugs, and perhaps service the "flame trap" whatever that is.

I'll keep you posted as parts come in, etc.

Thanks again,
Steve

 

QUOTE (ssgnai @ Jan 11 2010, 10:51 PM) <{POST_SNAPBACK}>Very helpful set of links, thanks!

I ordered the hose from Groton (25% of the dealer's price to me) and the car drove 20 miles today without issue (although without turbo boost really). While at the dealer, they printed me a service history, so I have some idea of what I need to do to bring it up to date. Looks like clean the PCV and PTC, new plugs, and perhaps service the "flame trap" whatever that is.

I'll keep you posted as parts come in, etc.

Thanks again,
Steve

This morning replaced the worn out intercooler hose. I've concluded that the extreme cold must have created a frozen blockage somewhere as my daughter has been successfully driving the car to school for this week.

The car definitely does not have turbo boost and I think the gas mileage is off from ~23 to ~19 mpg. I'm going to read up on those potential causes here in forum. Sounds like I might be headed to PTC cleanout and PVC service. If I don't find what I'm looking for in previous threads, I'll start a new topic.

Thanks for your help so far.
Steve

 

QUOTE (ssgnai @ Jan 11 2010, 08:51 PM) <{POST_SNAPBACK}>Very helpful set of links, thanks!

I ordered the hose from Groton (25% of the dealer's price to me) and the car drove 20 miles today without issue (although without turbo boost really). While at the dealer, they printed me a service history, so I have some idea of what I need to do to bring it up to date. Looks like clean the PCV and PTC, new plugs, and perhaps service the "flame trap" whatever that is.

I'll keep you posted as parts come in, etc.

Thanks again,
Steve

Does the car now run above 2,000 rpm's?

The First Picture is the flame trap area, the Flame Trap Filter is the (White part)

Also, here is what my Oil Trap looked like at 180,000 miles

 

QUOTE (SeaMike @ Jan 16 2010, 02:40 PM) <{POST_SNAPBACK}>Does the car now run above 2,000 rpm's?

The First Picture is the flame trap area, the Flame Trap Filter is the (White part)

Also, here is what my Oil Trap looked like at 180,000 miles

Thanks again for the help so far.

Yes, it runs now, but no turbo. And a gas leak of some size. I might be in over my head. Am calling local shops, but this helps me be smarter about what they are potentially going to do.

thanks. I'll keep you posted as to what happens.

Steve

 

QUOTE (ssgnai @ Jan 25 2010, 05:39 PM) <{POST_SNAPBACK}>Thanks again for the help so far.

Yes, it runs now, but no turbo. And a gas leak of some size. I might be in over my head. Am calling local shops, but this helps me be smarter about what they are potentially going to do.

thanks. I'll keep you posted as to what happens.

Steve

Hey, I am Mike, if you want to call me just let me know, it will be faster, and I can find out more info from you...and help you solve this issue