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    Exhaust Error

    Greetings!

    I bring tales of when a call to action is combined with ignorance.

    Well, my engine has an issue with hot starts, and I thought it might be the cats, because I had spoken to someone who had experienced bad cats on a Mercury Marquis. They had the cats removed, and the problem was fixed.

    I checked the codes and it gave me code 37, which meant excessive exhaust back pressure.

    I decided that I would disconnect the cats with a circular saw and then replace them with straight pipes.

    On the second to final cut, the fucking exhaust dropped down and hit me on the nose.

    Okay, now that you stopped laughing at me, it's just a little broken, you could hardly tell really.

    Anyway, I tied it with rope and drove to an auto shop, where the guy fixed it for a hundred dollars.

    The whole time, this loudmouthed, alpha male guy was constantly bullying and demeaning the guy who was doing the job, some random looking kid. He said "you turned a 20 minute job into a 2 hour fucking fiasco" because the kid welded it up in the wrong position, so that it was touching a control arm. He got it fixed after another 20 minutes of his boss blaming him and calling him names etc. That guy has some issues, and I didn't like it when he implied that Panthers were old technology.

    Anyway, car seems to run better without cats, but I can still hear a little phhht phhht from the exhaust, I guess that kids welding skills need improving! I'll have to seal it with some quicksteel putty, that will work.

    Over and out!
    Last edited by EternityofNight; 02-22-2010, 11:10 PM.

    #2
    i worked in a high production exhaust shop for a few yrs......plenty of yelling.........told the boss more than once to go fuck himself and do it himself if he didnt like my pace

    1986 lincoln towncar signature series. 5.0 HO with thumper performance ported e7 heads, 1.7 roller rockers, warm air intake, 65mm throttle body, 1/2" intake spacer, ported intakes, 3.73 rear with trac lock, 98-02 front brake conversion, 92-97 rear disc conversion, 1" rear swaybar, 1 3/16" front swaybar, 16" wheels and tires, loud ass stereo system, badass cb, best time to date 15.94 at 87 mph. lots of mods in the works 221.8 rwhp 278 rwt
    2006 Lincoln Town Car Signature. Stock for now
    1989 Ford F-250 4x4 much much more to come, sefi converted so far.
    1986 Toyota pickup with LSC wheels and 225/60/16 tires.
    2008 Hyundai Elantra future Revcon toad
    1987 TriBurner and 1986 Alaska stokers keeping me warm. (and some pesky oil heat)

    please be patient, rebuilding an empire!

    Comment


      #3
      Sounds like any shop.
      2020 F250 - 7.3 4x4 CCSB STX 3.55's - BAKFlip MX4
      2005 Grand Marquis GS - Marauder sway bars, Marauder exhaust, KYB's
      2003 Marauder - Trilogy # 8, JLT, kooks, 2.5" exhaust, 4.10's/31 spline, widened rear's, metco's, addco's, ridetech's 415hp/381tq
      1987 Colony Park - 03+ frame swap, blown Gen II Coyote, 6R80, ridetechs, stainless works, absolute money pit. WIP

      Comment


        #4
        I'd have told the boss to stop making the kid rush the job on my car or take teh car off the hoist and let me find somewhere else, but that's just me.

        85 4 door 351 Civi Crown Victoria - Summer daily driver, sleeper in the making, and wildly inappropriate autocross machine
        160KMs 600cfm holley, shorty headers, 2.5" catted exhaust, 255/295 tires, cop shocks, cop swaybars, underdrive pulley, 2.73L gears.
        waiting for install: 3.27's, Poly bushings, boxed rear arms, 2500 stall converter, ported e7's, etc

        06 Mazda 3 hatch 2.3L 5AT (winter beater that cost more than my summer car)

        Comment


          #5
          Hi welcome to GMN, I'm confused, there is no code 37. And I've never heard of an OBD-I car measuring back pressure (judging from the 2 digit code http://www.thorssell.net/hbook/2digit.html). What year is this car?

          Comment


            #6
            Originally posted by johnunit View Post
            I'd have told the boss to stop making the kid rush the job on my car or take teh car off the hoist and let me find somewhere else, but that's just me.
            That is a good judgement, but at the time I was desperate to just get the job done. One day I will take it to a better shop and get duals. That will be a happy day for sure.

            Comment


              #7
              Originally posted by 86VickyLX View Post
              Hi welcome to GMN, I'm confused, there is no code 37. And I've never heard of an OBD-I car measuring back pressure (judging from the 2 digit code http://www.thorssell.net/hbook/2digit.html). What year is this car?
              Thanks for the welcome. Sorry, it was code 34 - "PFE or EVP circuit above the closed limit of 0.67 volts."

              I discovered the bit about exhaust pressure when I did a search with the above info.

              ...and it's a 1986 Mercury Grand Marquis 5.0.

              PS. If that's what it's like working in a shop, then I don't want to work in one. Somebody might end up with a welder upside their head.

              Comment


                #8
                Being the bottom guy on the totem pole at a shop sucks sometimes, for sure.

                85 4 door 351 Civi Crown Victoria - Summer daily driver, sleeper in the making, and wildly inappropriate autocross machine
                160KMs 600cfm holley, shorty headers, 2.5" catted exhaust, 255/295 tires, cop shocks, cop swaybars, underdrive pulley, 2.73L gears.
                waiting for install: 3.27's, Poly bushings, boxed rear arms, 2500 stall converter, ported e7's, etc

                06 Mazda 3 hatch 2.3L 5AT (winter beater that cost more than my summer car)

                Comment


                  #9
                  Code 34 has nothing to do with the exhaust system. Its usually caused by a failed EGR position sensor, or a blob of crap under the EGR valve pintle. We don't have pressure feedback sensors, just an egr position sensor.
                  86 Lincoln Town Car (Galactica).
                  5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

                  91 Lincoln Mark VII LSC grandpa spec white and cranberry

                  1984 Lincoln Continental TurboDiesel - rolls coal

                  Originally posted by phayzer5
                  I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

                  Comment


                    #10
                    I had a fight with my boss and I shoved him into a pile of scrap iron.
                    Pebbles-1968 Ford F250
                    Pile of Junk! An Electronics Project Site (To get wet by)<---Clicky! NEW STUFF!!!!

                    Comment


                      #11
                      Sucks to hear about your exhaust. The boss/guy working the front desk/phones/customer stuff at the exhaust shop I took mine to was as high as a fucking kite, real easy to deal with. I doubt if he even raised his voice at his techs
                      sigpic


                      - 1990 Ford LTD Crown Victoria P72 - the street boat - 5.0 liter EFI - Ported HO intake/TB, 90 TC shroud/overflow, Aero airbox/zip tube, Cobra camshaft, 19lb injectors, dual exhaust w/ Magnaflows, Cat/Smog & AC delete, 3G alternator, MOOG chassis parts & KYB cop shocks, 215/70r/15s on 95-97 Merc rims

                      - 2007 Ford Escape XLT - soccer mom lifted station wagon - 3.0 Duratec, auto, rear converter delete w/ Magnaflow dual exhaust

                      - 2008 Mercury Grand Marquis Ultimate Edition - Daily driver - 4.6 2 valve Mod motor, 4R75E, 2.73s. Bone stock

                      Comment


                        #12
                        Originally posted by 1990LTD View Post
                        Sucks to hear about your exhaust. The boss/guy working the front desk/phones/customer stuff at the exhaust shop I took mine to was as high as a fucking kite, real easy to deal with. I doubt if he even raised his voice at his techs
                        Sounds like my kind of shop...

                        Comment


                          #13
                          Yeah that was my thought as well, they had my car back to me in 3 hours and a bit and were super nice, even bought my used converters from me.
                          sigpic


                          - 1990 Ford LTD Crown Victoria P72 - the street boat - 5.0 liter EFI - Ported HO intake/TB, 90 TC shroud/overflow, Aero airbox/zip tube, Cobra camshaft, 19lb injectors, dual exhaust w/ Magnaflows, Cat/Smog & AC delete, 3G alternator, MOOG chassis parts & KYB cop shocks, 215/70r/15s on 95-97 Merc rims

                          - 2007 Ford Escape XLT - soccer mom lifted station wagon - 3.0 Duratec, auto, rear converter delete w/ Magnaflow dual exhaust

                          - 2008 Mercury Grand Marquis Ultimate Edition - Daily driver - 4.6 2 valve Mod motor, 4R75E, 2.73s. Bone stock

                          Comment


                            #14
                            Where are you finding places to remove the cats. They won't even talk about it here.
                            89 CV LX 225/60 x 16 tires, CC819 rear springs, Front & rear sway bar, trans & PS cooler from 90 cop car. KYB shocks, F-150 on rear. Dual Exhaust w/ H pipe. Dark brown door panels, carpet, steering wheel, trim parts from a 87 Mer GM. Power front buckets from 96 Jeep Cherokee. LED'S front & rear. 3G Alt from a 97 Taurus wagon 3.0. Electric fan. Rear axle from a 97 PI 3.27 with disk brakes. Headlight relays.

                            Comment


                              #15
                              Originally posted by Glen View Post
                              Where are you finding places to remove the cats. They won't even talk about it here.


                              If my car were a year newer they wouldn't be able to do it. 1990 was the arbitrary cutoff point that they picked when coming up with the laws.. 91 and up need catalytic converters here.
                              sigpic


                              - 1990 Ford LTD Crown Victoria P72 - the street boat - 5.0 liter EFI - Ported HO intake/TB, 90 TC shroud/overflow, Aero airbox/zip tube, Cobra camshaft, 19lb injectors, dual exhaust w/ Magnaflows, Cat/Smog & AC delete, 3G alternator, MOOG chassis parts & KYB cop shocks, 215/70r/15s on 95-97 Merc rims

                              - 2007 Ford Escape XLT - soccer mom lifted station wagon - 3.0 Duratec, auto, rear converter delete w/ Magnaflow dual exhaust

                              - 2008 Mercury Grand Marquis Ultimate Edition - Daily driver - 4.6 2 valve Mod motor, 4R75E, 2.73s. Bone stock

                              Comment

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