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Discussion Starter · #1 ·
So the temp read 105 on the dash display and I think the car decided to pass out as well. <br>Here are a few quick "hiccups:"<br>1) Inconsistent Revs when the A/C is cranked - RPMs jump like crazy - searched through a few TNNs but not sure if they are directly related to HEAT.<br>2) Brakes are shuddering like crazy (not as bad as in the morning) I know they may be a little warped, but it's really bad in the afternoon.<br>3) Creaks and rattles in the rear deck - seems to be coming from the passenger rear pillar, around where the rear window connects.<p>Anyone get these same issues?<br>BTW - sparks are changed, battery is new.<p>
 

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Re: Summer Heat and the "R" - and not just about Torque/HP (dc2774)

I don't have the brake problem you speak of or the inconsistent revs with the a/c on. I rarely use it, I like the natural weather. But I do notice a problem<br>every summer. The ruber liner that is on the drivers door allways droops off in the peak of summer. I leave my car outside so it must be the glue wearing off. I currently have it taped on the car with painters tape. <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0">
 

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I got the rattles as well, I really hate those. Also, the other day when I really got on the brakes they only gave me about 50% power, which was kind of scary. These brakes are great and I have come to rely on them coming down from high speeds in short distances. A little scary when they dont give me full power. BTW, I felt the shuddering with the brakes as well.
 

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Re: (craina)

Can't say I have those issues on my SR but my previous S60 did have the rear creak. As you'd mention the rear deck is rubbing against the c-pillar. My fix was to wedge something between the deck and pillar. I have the ipd CAI and I think it helps somewhat in the SoFL summers. As for brakes the SS lines REALLY help for me. Also the Motul 600 made the brakes feel a bit more solid. Maybe the summer heat affects the viscosity of the fluid making it feel mushy.
 

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Re: Summer Heat and the "R" - and not just about Torque/HP (dc2774)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>dc2774</b> »</i></TD></TR><TR><TD CLASS="quote"><br>2) Brakes are shuddering like crazy (not as bad as in the morning) I know they may be a little warped, but it's really bad in the afternoon.<br></TD></TR></TABLE><p><A HREF="http://www.stoptech.com/tech_info/wp_warped_brakedisk.shtml" TARGET="_blank">http://www.stoptech.com/tech_i...shtml</A><p>LTA<br>
 

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Re: Summer Heat and the "R" - and not just about Torque/HP (The Weasel)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>The Weasel</b> »</i></TD></TR><TR><TD CLASS="quote">No problems here and it was 110F today according to the dash. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/eek.gif" BORDER="0"> </TD></TR></TABLE><br>humidity might have an effect
 

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Re: Summer Heat and the "R" - and not just about Torque/HP (R broski)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>R broski</b> »</i></TD></TR><TR><TD CLASS="quote"><br>humidity might have an effect</TD></TR></TABLE><p>Not really. I've had the R in some serious heat (100 plus) and higher humidity, albeit not day in and day out. Never had an issue with revs / AC or brakes.
 

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Re: Summer Heat and the "R" - and not just about Torque/HP (dc2774)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>dc2774</b> »</i></TD></TR><TR><TD CLASS="quote"><br>1) Inconsistent Revs when the A/C is cranked - RPMs jump like crazy - searched through a few TNNs but not sure if they are directly related to HEAT.<br>2) Brakes are shuddering like crazy (not as bad as in the morning) I know they may be a little warped, but it's really bad in the afternoon.<br>3) Creaks and rattles in the rear deck - seems to be coming from the passenger rear pillar, around where the rear window connects.<p>Anyone get these same issues?<br>BTW - sparks are changed, battery is new.<p></TD></TR></TABLE><p>1.Engine surging with AC could possibly be a dirty/sticking throttle plate. When the ECM commands the compressor on it also commands the throttle to open more to compensate for the load of the AC compressor. A dirty or sticking throttle plate will take more current to open the plate and can result in the RPM's jumping higher. Taking the throttle off and cleaning it usually helps out with this issue. If you have access to a lift, then you can just remove the intake pipe from the throttle and clean the plate from under the vehicle by spraying the cleaner up into the throttle. Using a long screwdriver to open the plate helps greatly. This may not be your problem 100% but its good maintenance regardless. <p>2. Sounds like rotors have excessive runout. If you feel the pulsation in the steering wheel, likely front rotors. If you feel it just in the pedal, likely rear rotors.<p>3. I've seen many a rear deck rattle. I usually address this by going in the truck and placing foam between the rear deck panel and the metal body of the deck area. Very easy and helps with some speaker rattles as well.<p>
 

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105+ never seems to cause an A/C or brake problem with my R.
 

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Re: (adykes)

I dont have an R but my revs jump too when ac clicks on in my AWD. Yea you need rotors. performance is not too good on a 100 degree day in these volvos, the factory intercooler is wedged between two things that get relatively hot. I hardly use my ac it really makes the car dog even more than it already does haha.
 

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I've had my T5 pass through Hoover Dam in the heat of July, mid-day, stuck in traffic for a good hour. With the outside temperature gauge registering 122 degrees, the water gauge, to my shock, didn't budge. The only thing that I did notice was the A/C was slightly more weak than at highway speed, and the clutch got a little soft. <p>But I was relieved at how well engineered this car is, if it could take that sort of punishment, and then zip on out of there to 85 MPH as if nothing out of the ordinary.
 

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Discussion Starter · #14 ·
Hate to re-up an old thread BUT.....<br>It did it again. After the battery change which of course was not covered by VIP everything seemed fine. Pulled out of the outdoor lot from work (95 read on the dash) and THUMP, THUMP, and the lights shut off again. Everything. Exact same symptoms as last time. I'm taking it back in the morning but I just know it won't have a problem because it's sitting in the garage all night to cool down.<p>1) What should I do this time?<br>2) Tech said the regulator is the "newer" one<p>I just have a feeling he's going to hook this up and it will not throw codes like last time. <p>Help
 
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