Ion Posted September 10, 2008 Report Share Posted September 10, 2008 The fun continues... After replacing yet another MAP sensor and seemingly relieving the stalling issues (p071 & p095 errors), I am noticing a sound coming from behind the dash on driver's side, sounding similar to the noise the turn signal makes when engaged. Any ideas? I stated seemingly relieved the stalling issues, because accelleration is still not completely smooth as it should be, but it hasn't stalled 2 weeks after replacing the MAP. Link to comment Share on other sites More sharing options...
BodybyFisher Posted September 10, 2008 Report Share Posted September 10, 2008 Clicking can be a circuit breaker that is opening due to a short. Check all of your accessories, headlight for proper operation. Try to localize that clicking, listen to the under dash relay center. Have you ever cleaned the phenolic spacer and mouse holes on your car? Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Ion Posted September 11, 2008 Author Report Share Posted September 11, 2008 What's a "phenolic spacer" and where are the "mouse holes"? During the last few years of tinkering with this car, I HAVE learned a lot, thanks to guys like you, but I've not yet encountered those. Bear with me... Clicking can be a circuit breaker that is opening due to a short. Check all of your accessories, headlight for proper operation. Try to localize that clicking, listen to the under dash relay center. Have you ever cleaned the phenolic spacer and mouse holes on your car? Link to comment Share on other sites More sharing options...
Ranger Posted September 11, 2008 Report Share Posted September 11, 2008 The "mouse holes" are the EGR feed channels in the intake. Having never owned a '93/'94 I can't explaine the phenolic spacers too well. I'll leave that to someone else. Link to comment Share on other sites More sharing options...
BodybyFisher Posted September 11, 2008 Report Share Posted September 11, 2008 Dirty Phenolic Spacer and mouse holes interferes with EGR flow, it causes hesitation, stumbling on acceleration. The 93 though 95 (I think 95, 94 for sure), has a phenolic spacer that gets gunked up with carbon, at the same time the 'mouse holes' that is what the guru called them get gunked and clogged up. It can cause fits, when you commented on your acceleration roughness, I was thinking that you should consider cleaning them. They need cleaning every 100K or so. Regis has done it, I believe there is a lot on this in the archives, I personally have never done it, 96 does not have this. I did a search check these threads, its worth cleaning them if you have not done so. Also check your Fuel Pressure Regulator it is hidden in the intake plenum. http://caddyinfo.ipbhost.com/index.php?showtopic=2427 http://caddyinfo.ipbhost.com/index.php?showtopic=1359 http://caddyinfo.ipbhost.com/index.php?showtopic=3799 WOW, Look what I just found! that terrific member Scotty actually POSTED the phenolic spacer and mouse hole cleaning procedure that was previously posted by the GURU!!!! See Scotty's Post #5 in this thread, I miss that guy Scotty, he was the man! http://caddyinfo.ipbhost.com/index.php?showtopic=5803 Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Ion Posted September 11, 2008 Author Report Share Posted September 11, 2008 I'll look into these tomorrow. Re: the FPR...I replaced it less than a year ago and learned how important it is to seat it properly!!! Thanks again for the input! Dirty Phenolic Spacer and mouse holes interferes with EGR flow, it causes hesitation, stumbling on acceleration. The 93 though 95 (I think 95, 94 for sure), has a phenolic spacer that gets gunked up with carbon, at the same time the 'mouse holes' that is what the guru called them get gunked and clogged up, I believe this has to do with the EGR system. It can cause fits, when you commented on your acceleration roughness, I was thinking that you should consider cleaning them. They need cleaning every 100K or so. Regis has done it, I believe there is a lot on this in the archives, I personally have never done it, 96 does not have this. I did a search check these threads, its worth cleaning them if you have not done so. Also check your Fuel Pressure Regulator it is hidden in the intake plenum. http://caddyinfo.ipbhost.com/index.php?showtopic=2427 http://caddyinfo.ipbhost.com/index.php?showtopic=1359 http://caddyinfo.ipbhost.com/index.php?showtopic=3799 WOW, Look what I just found! that terrific member Scotty actually POSTED the phenolic spacer and mouse hole cleaning procedure that was previously posted by the GURU!!!! See Scotty's Post #5 in this thread, I miss that guy Scotty, he was the man! http://caddyinfo.ipbhost.com/index.php?showtopic=5803 Link to comment Share on other sites More sharing options...
Regis Posted September 11, 2008 Report Share Posted September 11, 2008 The link that BBF posted http://caddyinfo.ipbhost.com/index.php?showtopic=5803 (post #5) has some good info and directions. Make sure to plug the large hole at the bottom of the lower spacer with a rag to keep crud from falling down there while scraping. When you start scraping the carbon, it'll go everywhere so have someone follow with a shop-vac as you scrape. There's a thread with more detailed directions but I haven't found it yet. EDIT: Here's some more info: http://caddyinfo.ipbhost.com/index.php?sho...amp;hl=phenolic http://caddyinfo.ipbhost.com/index.php?sho...amp;hl=phenolic "Burns" rubber " I've never considered myself to be all that conservative, but it seems the more liberal some people get the more conservative I become. " Link to comment Share on other sites More sharing options...
Ion Posted September 11, 2008 Author Report Share Posted September 11, 2008 UPDATE: I removed the phenolic spacers from each side and cleaned out a load of carbon gunk, as well as chipped out carbon gunk from the ports they sat on. While scraping out around the ports, I was able to fit in a modified shop vac to suck up all the crud. Took it on a test ride and noticed fluid streaming out from under the car. Forgot to re-attach the coolant hose!!! Anyway...test ride seemed to go just fine. I believe it ran more smoothly, without little pauses, etc, but that might just be my mind trying to reward me for my cleaning efforts? Regardless, I certainly didn't do any harm by cleaning 14 years worth of gunk from there! Re: the clicking noise...I was able to locate the source and it wasn't coming from the dash, it was coming from under my seat. I attached a closeup of the component. Any ideas why it's clicking and how I can fix it? Link to comment Share on other sites More sharing options...
Ranger Posted September 12, 2008 Report Share Posted September 12, 2008 Sounds like the clicking is a relay. You didn't have the seat heaters on did you? That relay will click when the heating element is burned. Otherwise, check the movement relays. Link to comment Share on other sites More sharing options...
Ion Posted September 12, 2008 Author Report Share Posted September 12, 2008 Sounds like the clicking is a relay. You didn't have the seat heaters on did you? That relay will click when the heating element is burned. Otherwise, check the movement relays. Trust me, in a town that still has 100+ degree days, it was not turned on... But...the seat heater still does work. It was on accidentally a couple weeks ago. And...all the seat controlls work just fine. But...knowing the noise did not originate near anything that relates to the operation of the engine was a big relief. Link to comment Share on other sites More sharing options...
Regis Posted September 12, 2008 Report Share Posted September 12, 2008 You should notice more giddy up and go after the cleaning. Seat of the pants test drives can certainly be vague without using markers. I used a long on ramp for my test runs. Before the cleaning I was only able to hit 88mph by the end of the on ramp. After the cleaning I was able to hit 105mph. Also the car ran much smoother and no more hiccups or hesitation. Take it out for a hard drive and perform some WOTs. "Burns" rubber " I've never considered myself to be all that conservative, but it seems the more liberal some people get the more conservative I become. " Link to comment Share on other sites More sharing options...
kcd1184 Posted September 13, 2008 Report Share Posted September 13, 2008 I'll look into these tomorrow. Re: the FPR...I replaced it less than a year ago and learned how important it is to seat it properly!!! Thanks again for the input! They did away with the phenolic spacers in 94. 95 N* was a different design and also that is when the horsepower on the Eldo/SLS and ETC/STS each went up by 5. Don't know if that was related or not. Kent Dirty Phenolic Spacer and mouse holes interferes with EGR flow, it causes hesitation, stumbling on acceleration. The 93 though 95 (I think 95, 94 for sure), has a phenolic spacer that gets gunked up with carbon, at the same time the 'mouse holes' that is what the guru called them get gunked and clogged up, I believe this has to do with the EGR system. It can cause fits, when you commented on your acceleration roughness, I was thinking that you should consider cleaning them. They need cleaning every 100K or so. Regis has done it, I believe there is a lot on this in the archives, I personally have never done it, 96 does not have this. I did a search check these threads, its worth cleaning them if you have not done so. Also check your Fuel Pressure Regulator it is hidden in the intake plenum. <a href="http://caddyinfo.ipbhost.com/index.php?showtopic=2427" target="_blank">http://caddyinfo.ipbhost.com/index.php?showtopic=2427</a> <a href="http://caddyinfo.ipbhost.com/index.php?showtopic=1359" target="_blank">http://caddyinfo.ipbhost.com/index.php?showtopic=1359</a> <a href="http://caddyinfo.ipbhost.com/index.php?showtopic=3799" target="_blank">http://caddyinfo.ipbhost.com/index.php?showtopic=3799</a> WOW, Look what I just found! that terrific member Scotty actually POSTED the phenolic spacer and mouse hole cleaning procedure that was previously posted by the GURU!!!! See Scotty's Post #5 in this thread, I miss that guy Scotty, he was the man! <a href="http://caddyinfo.ipbhost.com/index.php?showtopic=5803" target="_blank">http://caddyinfo.ipbhost.com/index.php?showtopic=5803</a> Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.