PAUL T Posted April 25, 2019 Report Share Posted April 25, 2019 My wife's 2004 Deville will not start. We have been having issues with the starter screeching when it engages before you let go of the switch. Last night it would not start at all. The current codes are as follows: P0102- MAF sensor, P0335 & P0385- Crank sensor codes. The starter was turning over, but the engine was not. No belts were moving. The starter was not engaging the flywheel. I have had MAF problems before, so I will check the plug and possibly change the sensor. Where do I start? I am leaning more toward Crank sensors though. Where are they located? Thanks. Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted April 25, 2019 Report Share Posted April 25, 2019 Hi Paul, If the starter is spinning but not engaging its the starter drive. The starter needs replacing. I would start there, then tackle the codes. PAUL T 1 Quote 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...
rockfangd Posted April 26, 2019 Report Share Posted April 26, 2019 sure sounds like the starter itself is the no start issue. Check the main red cable that runs from the battery under the intake to the starter as well. PAUL T 1 Quote GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
PAUL T Posted May 22, 2019 Author Report Share Posted May 22, 2019 Would it be possible to use a 1994 Deville Concours starter in a 2004 Deville? The numbers for an aftermarket starters match but Acdelco numbers don"t. Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 22, 2019 Report Share Posted May 22, 2019 1 hour ago, PAUL T said: Would it be possible to use a 1994 Deville Concours starter in a 2004 Deville? The numbers for an aftermarket starters match but Acdelco numbers don"t. Paul, I went to rockauto and looked up starters for the 2 years, both new acdelco's and they are different part numbers. I would sit the 94 next to the 04 starter and match them up. It might just be a slightly different layout of the solenoid. Mike Quote 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...
PAUL T Posted June 7, 2019 Author Report Share Posted June 7, 2019 Thanks Mike, I talked to my Cadillac mechanic friend and he said that if the engine numbers (8th digit of VIN) match the starters should and they do. I am hopefully going to get time to take the one out of the 94 this weekend. My father-in-laws 2003 Cadillac Deville is having vacuum problems again. I am suspecting the rubber elbow at the left side of the intake manifold. I changed the plenum a few years back. I had a problem finding that elbow the last time I changed the one on the 2004 some time ago. I ended up buying a bent rubber line the last time. I will check again but may end up going the same route with the 2003. When I tear into the 94 I will have to see if it has the elbow and kill 2 birds with 1 stone. BodybyFisher 1 Quote Link to comment Share on other sites More sharing options...
PAUL T Posted August 4, 2019 Author Report Share Posted August 4, 2019 UPDATE: I finally got time to put a new starter in and all is well. Starts and runs great again. Thanks for all the great advice. BodybyFisher 1 Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted August 4, 2019 Report Share Posted August 4, 2019 15 minutes ago, PAUL T said: UPDATE: I finally got time to put a new starter in and all is well. Starts and runs great again. Thanks for all the great advice. Glad to hear it @PAUL T Quote 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...
rockfangd Posted August 7, 2019 Report Share Posted August 7, 2019 Glad to hear. I assume the 94 was different? Honestly as rare as they fail I would not put in a used one. A replacement should last a long time Quote GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
PAUL T Posted August 10, 2019 Author Report Share Posted August 10, 2019 I didn’t feel like taking the 94 out. I just bought a new starter and put it in. Quote Link to comment Share on other sites More sharing options...
PAUL T Posted August 10, 2019 Author Report Share Posted August 10, 2019 Chasing a slight miss at stops now. No current codes set yet. Gas mileage back up to 21mpg. Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted August 10, 2019 Report Share Posted August 10, 2019 Does the miss go away at highway speeds? Quote 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...
PAUL T Posted August 16, 2019 Author Report Share Posted August 16, 2019 (edited) Yes. My wife has been driving it all week and I haven't had a chance to run the codes again. Edited August 16, 2019 by PAUL T Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted August 16, 2019 Report Share Posted August 16, 2019 8 minutes ago, PAUL T said: Yes. My wife has been driving it all week and I haven't had a chance to run the codes again. Has any engine work been done? Do you have an engine analyzer that can provide real time misfire counts? I am curious what cylinders are misfiring and want to actually see the misfires diminish as the rpm/oil pressure increases. Quote 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...
PAUL T Posted August 17, 2019 Author Report Share Posted August 17, 2019 I have replaced spark plugs, front and rear ignition control modules, ISC. Plenum, heater blower, and PCV hose. I think one injector wire or injector is causing the problem. I will have to check around to see if I can find someone with an analyzer. I will check codes today. BodybyFisher 1 Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted August 17, 2019 Report Share Posted August 17, 2019 59 minutes ago, PAUL T said: I have replaced spark plugs, front and rear ignition control modules, ISC. Plenum, heater blower, and PCV hose. I think one injector wire or injector is causing the problem. I will have to check around to see if I can find someone with an analyzer. I will check codes today. It would be terrific if we could see your misfire counts at idle, at 2,000 rpm and at highway speeds. You have done a lot of work. What oil do you use? I am off on a different direction with your problem but want you to eliminate all causes first. Have you checked fuel pressure? Is this the 2004? Quote 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...
PAUL T Posted August 19, 2019 Author Report Share Posted August 19, 2019 I checked the codes and it is missing at idle but not throwing any codes. I use Penzoil 5W30. I have not checked the fuel pressure but I have checked the Fuel Pressure Regulator. My Fuel pressure gauge got broken a few years ago and I haven’t replaced it yet. Yes, this is the 2004. Quote Link to comment Share on other sites More sharing options...
PAUL T Posted September 14, 2019 Author Report Share Posted September 14, 2019 Car won’t start today, checked the fuel pressure and only had 13# pressure. Time for fuel pump? Quote Link to comment Share on other sites More sharing options...
rockfangd Posted September 15, 2019 Report Share Posted September 15, 2019 sure sounds like it. It may be the pump itself or the pigtail to it. Quote GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
PAUL T Posted September 16, 2019 Author Report Share Posted September 16, 2019 I made sure I checked the fuel pump fuse and relay before I ordered the pump. I found out today that I can access the fuel pump from the trunk, so that made me feel better. No crawling underneath to drag the tank out and change the pump. I also ordered a Delphi pump from Autozone for $185 after a 20% discount coupon from their website and free shipping. They beat Rockauto and Advance on a Delphi pump which surprised me. I think the reason it wasn’t showing a stumbling code was because the fuel pump was failing. Now my biggest challenge is to empty the trunk to get to it.😳😂 I will post after I install it. Quote Link to comment Share on other sites More sharing options...
rockfangd Posted September 16, 2019 Report Share Posted September 16, 2019 Great. I was going to mention the access. I am jealous as I had to drop the tanks in both of my 97s. The Delphi should come with the repair pigtail as well. That is what I used Quote GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
PAUL T Posted September 17, 2019 Author Report Share Posted September 17, 2019 Yes I remember dropping the tank on my 97 Deville. Not fun, I remembered we all complained about that it would be much simpler to just cut an access hole in the trunk. I guess someone was listening and they did just that for the 2000 body style. Pump came in today with the new pigtail. Now I have to clean the trunk out to get to it. Quote Link to comment Share on other sites More sharing options...
rockfangd Posted September 18, 2019 Report Share Posted September 18, 2019 I had to pull tank on my Seville for the fuel pump, The Deville for the fuel gauge(feeler issue). I did both within a week of each other. Not that much fun Quote GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
PAUL T Posted October 24, 2019 Author Report Share Posted October 24, 2019 Well I having trouble getting the old Fuel pump out of the car. The access in the trunk is great but getting the metal ring off was a battle. It was rusty and wouldn’t budge. After spraying it with WD40 (that’s all I had at the time) and letting it soak a few days it finally came off with a lot of pounding with a hammer and screwdriver. Next I thought the battle was over but the pump will not come out of the hole. I turned it around trying to get it out but it will not come out. I don’t know if I am not holding my mouth right or what, it’s not coming out! I am going to come back to it and try again. Quote Link to comment Share on other sites More sharing options...
rockfangd Posted October 25, 2019 Report Share Posted October 25, 2019 So pump comes up but will not come out of the tank? it sounds like one of the springs or sender lever is catching on the tank. Carefully fiddle it back and forth and it should come out. Quote GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
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