scott y Posted April 5, 2012 Report Share Posted April 5, 2012 As I have replaced my fuel pump with a new Delco unit I've got no fire...45-55 psi key on,no codes,nothing doesn't even sputter or try to start,I'm stumped Boys! Link to comment Share on other sites More sharing options...
rockfangd Posted April 5, 2012 Report Share Posted April 5, 2012 Have you tried an aid to see if it fires? If it does not then you need to start looking at the ignition system.(coil packs, coil pack module) etc... Mainly see if you have spark Also no security light on the dash I assume? GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
scott y Posted April 5, 2012 Author Report Share Posted April 5, 2012 Thanks for the input but whats an "aid"? Link to comment Share on other sites More sharing options...
BodybyFisher Posted April 5, 2012 Report Share Posted April 5, 2012 I think he is saying something like ethyr (spelling), spray it into the TB and see if she starts. You have 55 at the schrader valve on the fuel rail? What was the symptom before you changed the fuel pump, did it run?, link us to the prior thread, (this is why you need to stay with the existing thread) 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...
scott y Posted April 5, 2012 Author Report Share Posted April 5, 2012 40-50 +/- at the rail, plenty o pressure. The reason I changed the pump was a no start condition. Had to have the damned thing towed home, the pressure B4 I changed it was around 12 psi key on. Sorry about getting all squirelly on the posts, I'm having a hell of a time with it! Link to comment Share on other sites More sharing options...
BodybyFisher Posted April 5, 2012 Report Share Posted April 5, 2012 Ok, did you check for spark? It is difficult with your year. My next move would be to check for spark some how. you have fuel and good fuel pressure now but maybe your original no start problem was related to what is happening here. Check the IGN fuse/breakers for continuity and corrosion of the socket and blade connector. I would pull all breakers/fuses and check them closely also for good measure 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...
scott y Posted April 5, 2012 Author Report Share Posted April 5, 2012 So far I have checked all the fuses, but I will get more in depth. I just got back from the boneyard, I wanted to pick up another coil pack module to see if that would make a diff. Not one to be found! They've all been picked clean! Maybe that is an issue with these cars at this age. I wonder if there's a way to check them, would they set a code if failed? Link to comment Share on other sites More sharing options...
Texas Jim Posted April 5, 2012 Report Share Posted April 5, 2012 I would try spraying a small amount of ether (Starting Fluid) in the throttle body and then try to start it. If it "TRYS" to start... you know you have spark and there is a fuel DELIVERY problem...such as the injectors are not putting fuel in the engine. At least that would be an easy way to tell if it was getting spark. Link to comment Share on other sites More sharing options...
KHE Posted April 5, 2012 Report Share Posted April 5, 2012 There are testers that you can hold next to one of the plug wires to see if there is high voltage present. The other method is to disconnect one of the plug wires (front bank would be the easiest) and connect it to an old spark plug. Connect the ground electrode to the vehicle ground with a test lead with an alligator clip at each end. Crank the engine and watch the plug to see if there is spark. If there is spark, the ignition is working properly. If there is no spark, the problem lies in the ignition system. You could also use an inductive timing light if you have one. If you have spark, the next thing to check is if the injectors are opening. Unplug one of the injectors and connect a noid light to the harness and crank the engine. The noid light should flash if the injector is receiving the signal. This might be difficult on your car as the fuel rail is under the intake and you don't want it starting with the intake off. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
Texas Jim Posted April 5, 2012 Report Share Posted April 5, 2012 I had me ex-wife hold the coil wire one time when she was in my way while I was working on my old race car... She went back in the house and quit bothering me after that. Link to comment Share on other sites More sharing options...
BodybyFisher Posted April 6, 2012 Report Share Posted April 6, 2012 Kevin, are there plug wires?, I was under the impression that you could not get to the plug connection (COP or Sealed Cassette?) I have suggested this unit in the past, and I'd love to have one, but its quite expensive at $87. But I'd be the envy of my block!, yes, let me bring over my Tri-Corder and check it out.... http://www.thetoolwarehouse.net/p-7559-waekon-76562.aspx 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...
Ranger Posted April 6, 2012 Report Share Posted April 6, 2012 Mike is right. No plug wires on this puppy. Link to comment Share on other sites More sharing options...
BodybyFisher Posted April 6, 2012 Report Share Posted April 6, 2012 I had me ex-wife hold the coil wire one time when she was in my way while I was working on my old race car... She went back in the house and quit bothering me after that. That is the best! Thanks for the HELP dear! I know its a FUEL problem! You Da best dear.... I have accidently contacted coil output in the old days, its quite a jolt, but with the ignition outputs of today I think I'd be flat lining. I left a plug wire accidently disconnected on my 96 or 91, I can't remember and the sparks jumped 2 to 3 inches, Im lucky I didnt blow out local electronics I almost broke my neck getting back in the car to turn it off 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...
Ranger Posted April 6, 2012 Report Share Posted April 6, 2012 I have accidently contacted coil output in the old days, its quite a jolt, but with the ignition outputs of today I think I'd be flat lining. It's something you NEVER forget. To this day I am leery of touching plug wires. Link to comment Share on other sites More sharing options...
rockfangd Posted April 6, 2012 Report Share Posted April 6, 2012 I have accidently contacted coil output in the old days, its quite a jolt, but with the ignition outputs of today I think I'd be flat lining. It's something you NEVER forget. To this day I am leery of touching plug wires. lol I am also very leery of plug wires. i wont go near them. I have been jolted hard. Learned my lesson. I did mean ether when I said aid. I work on diesels for a living so ether is a bad word. Even on a gas job if not done right can be bad. The car doesnt have plug wires? a 94? GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
scott y Posted April 6, 2012 Author Report Share Posted April 6, 2012 Yes, the 94 has plug wires. Link to comment Share on other sites More sharing options...
BodybyFisher Posted April 6, 2012 Report Share Posted April 6, 2012 OH SORRY, my mistake, I looked at your description and it showed 2002 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...
scott y Posted April 6, 2012 Author Report Share Posted April 6, 2012 I do have an 02 in the stable but it's not the one I'm working on. Dam this 94 anyway! This morning I go out to the garage to continue on with the no start c ondition and what do I see? a puddle of brake fluid under the left rear axle! Jack up the car again, it's the brake line that goes from one side to the other,roughly 4 feet of 3/16" brake line needs replacement. I've got one of the 2 required fittings in stock and no brake line, Being "Good Friday" I'm screwed until tomorrow,and I still haven't got it to fire up yet! Hope everyones having a Great weekend Link to comment Share on other sites More sharing options...
Ranger Posted April 7, 2012 Report Share Posted April 7, 2012 OH SORRY, my mistake, I looked at your description and it showed 2002 Oops! Same here, I didn't see the '94 listed with it, sorry. Link to comment Share on other sites More sharing options...
rockfangd Posted April 7, 2012 Report Share Posted April 7, 2012 thought I was losing it there lol. GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
BodybyFisher Posted April 7, 2012 Report Share Posted April 7, 2012 Given that it has spark plug wires it is easy to test for spark then, do you have spark? 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 7, 2012 Report Share Posted April 7, 2012 exactly. Itching to know. Be careful though GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
scott y Posted April 7, 2012 Author Report Share Posted April 7, 2012 Today I'll get that brake line issue conquered and then go hog nuts to find out if there is spark or not Link to comment Share on other sites More sharing options...
BodybyFisher Posted April 7, 2012 Report Share Posted April 7, 2012 If you can find something like this in a tool place, it would be helpful and safe, be careful not to allow sparks to fly around wildly http://www.denlorstools.com/home/dt1/page_1976_318/kd_tools_kd_2756_hei_ignition_tester.html 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 8, 2012 Report Share Posted April 8, 2012 less than 10.00 is worth evry penny. I have 2 or 3 different testers, from inline, to COP, etc... GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
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