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Thread: 1988 Lincoln Town Car

  1. #201
    I'm an air-conditioned gypsy gadget73's Avatar
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    I guess I shouldn't tell you guys that I run PowerFlo filters that I got a pile of for less than $1 each on my cars.

    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 SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

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

  2. #202
    GMN Regular DerekTheGreat's Avatar
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    LoL no, at that point you might as well just run an empty filter case..
    1985 LTD Crown Victoria - SOLD
    1988 Town Car Signature - Current Party Barge

  3. #203
    I'm an air-conditioned gypsy gadget73's Avatar
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    they're actually Purolator filters, not near as bad as the cheap price would indicate. Dollar cost isn't the ultimate measure in determining quality.

    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 SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

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

  4. #204
    GMN Regular DerekTheGreat's Avatar
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    Never said it was. However, you typically get what you pay for. If someone already did their homework to determine where a filter actually comes from and how it's internals stacks up then OK. Me? I don't have those connections. Weight is a good indicator.. It's not like they'll let you cut the filters open before you buy one. I ran A/C Delco or Motorcraft ones for years before I tried the Purolator Boss filters and noticed my oil remained noticeably cleaner for longer before I switched to 'em. At Meijer they were among the cheaper filters available.
    1985 LTD Crown Victoria - SOLD
    1988 Town Car Signature - Current Party Barge

  5. #205
    88 LTC nfldfordltd's Avatar
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    I finally got around to starting a clean up on the Lincoln today. Hand wash, windows, vinyl (including roof), engine bay touch up and carpet/seat vacuum.
    Tomorrow after work I'll be continuing with a carpet shampoo (including the carpet mats), clean the service rubber mats, tidy up the trunk and apply a good coat of wax. I think I'll have to go over the roof again as the first coat of grease for the year usually gets soaked in pretty good and needs the second one. Going out of town for a few days on Saturday so if time allows between now and then, I'm going to have a go at shining up some chrome before I go. The bright aluminum trim on the roof around the door/window frames is faded, me no likey that.
    Then I'll be afraid to take it out into the sandstorm that is Goose Bay, for it will definitely get dirty again.

    Summer car-> 1988 Lincoln Town Car, triple blue, 267,xxx km. Out for 2017, new HO 5.0 in and running. Bought 2006/08/22. June 2017 PotM!
    Winter vehicle-> 1996 Ford F-150 XL 4x4, orange, 302,xxx+km. AKA "King Billy". Takes the beating like no vehicle should ever have to. Bought 2013/11/26.

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

  6. #206
    GMN Regular DerekTheGreat's Avatar
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    I need to wax my car. Needs the full treatment.
    1985 LTD Crown Victoria - SOLD
    1988 Town Car Signature - Current Party Barge

  7. #207
    88 LTC nfldfordltd's Avatar
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    So my car has developed an annoying surge at idle lately. Only occurs when it's partly warmed up to normal operating temperature. Never happens when cold. Also, sometimes it's a bit hard to start when half warm/half cooled off after being shut off. It will always start, but needs some accelerator similar to when it's flooded. The surge is made considerably worse when the A/C compressor is cycling (when the HVAC is in the "off" position, it's a lot better). Occasionally, it's bad enough to stall. IAC is three years old, in good shape and recently cleaned. I haven't checked for codes yet, and vacuum lines all appear to be in good shape. I'm thinking my lower intake wasn't set in place properly when I had it apart to change the lifters and pushrods a little while back, it seems that's when it started acting up. I did remove the upper and checked the torque on all the lower intake bolts while the engine was warm, they were within spec. I tightened them a little where the bolts are old and possibly stretched a little, they are all at about 30 lb/ft now. No difference made to the surging idle.
    I'm sure someone else here has had a similar or the same issue in the past...input appreciated as always.

    Summer car-> 1988 Lincoln Town Car, triple blue, 267,xxx km. Out for 2017, new HO 5.0 in and running. Bought 2006/08/22. June 2017 PotM!
    Winter vehicle-> 1996 Ford F-150 XL 4x4, orange, 302,xxx+km. AKA "King Billy". Takes the beating like no vehicle should ever have to. Bought 2013/11/26.

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

  8. #208
    GMN Regular DerekTheGreat's Avatar
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    See what's doing with a vacuum gauge hooked up to it or try and spray carb & choke cleaner around gasket areas while it's running to see if the idle changes any.
    1985 LTD Crown Victoria - SOLD
    1988 Town Car Signature - Current Party Barge

  9. #209
    GMN Regular Giraffe's Avatar
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    Check out the surging idle checklist on StangNet. Most people solve idle issues with it.

    https://www.stangnet.com/mustang-for...cklist.698148/
    óJohn

    1990 Mercury Grand Marquis LS (POTM March 2017 & May 2019)
    1995 Mustang SVT Cobra coupe (cream puff)
    1966 Mustang coupe (restoration in-progress)

  10. #210
    I'm an air-conditioned gypsy gadget73's Avatar
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    Any chance you got the oxygen sensors reversed? The idle can hunt if that happens. Can also happen if the ground is off at the back of the intake.

    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 SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

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

  11. #211
    88 LTC nfldfordltd's Avatar
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    Thanks for the checklist. I'll go down through it soon as I get the chance.
    O2 sensors aren't reversed as the last time I had the intake off, I left the wiring in place, except for what had to be removed up top (injector harness). I am second-guessing myself now about the ground eyelet...going to check that very soon.

    Summer car-> 1988 Lincoln Town Car, triple blue, 267,xxx km. Out for 2017, new HO 5.0 in and running. Bought 2006/08/22. June 2017 PotM!
    Winter vehicle-> 1996 Ford F-150 XL 4x4, orange, 302,xxx+km. AKA "King Billy". Takes the beating like no vehicle should ever have to. Bought 2013/11/26.

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

  12. #212
    88 LTC nfldfordltd's Avatar
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    Ground wire was put back on the intake stud.
    Fu(k.
    Oh well, to the checklist I go

    Summer car-> 1988 Lincoln Town Car, triple blue, 267,xxx km. Out for 2017, new HO 5.0 in and running. Bought 2006/08/22. June 2017 PotM!
    Winter vehicle-> 1996 Ford F-150 XL 4x4, orange, 302,xxx+km. AKA "King Billy". Takes the beating like no vehicle should ever have to. Bought 2013/11/26.

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

  13. #213
    88 LTC nfldfordltd's Avatar
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    So I started digging around to find my surging idle problem yesterday afternoon. Pulled the air intake ductwork and looked into the TB and saw coolant in there. Gasket between the TB and EGR spacer was soaked. Pulled the TB off, cleaned up the coolant in the throat and all the old gasket off the TB and EGR spacer, made a new gasket and put it all back together. Seems clean and dry now. Unhooked the battery for about 1/2 hour to reset the stored memory codes. Seems to be a lot better now than it was, but still has the occasional little fit of hunting idle speed. Going to have to check for vacuum leaks and maybe pull the codes to see if there's anything else going on that shouldn't be.

    Summer car-> 1988 Lincoln Town Car, triple blue, 267,xxx km. Out for 2017, new HO 5.0 in and running. Bought 2006/08/22. June 2017 PotM!
    Winter vehicle-> 1996 Ford F-150 XL 4x4, orange, 302,xxx+km. AKA "King Billy". Takes the beating like no vehicle should ever have to. Bought 2013/11/26.

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

  14. #214
    I'm an air-conditioned gypsy gadget73's Avatar
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    I've had problems with that EGR spacer. if the mating surface isn't absolutely perfect it leaks coolant. Sometimes the only way to make it work right is to just bypass it.

    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 SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

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

  15. #215
    GMN Regular DerekTheGreat's Avatar
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    Quote Originally Posted by gadget73 View Post
    I've had problems with that EGR spacer. if the mating surface isn't absolutely perfect it leaks coolant. Sometimes the only way to make it work right is to just bypass it.
    I was so close to bypassing mine earlier in the year. Perhaps a thin layer of that stuff someone mentioned would be a better idea than just the gasket alone. I'm running just the gasket but if I had to do it again...
    1985 LTD Crown Victoria - SOLD
    1988 Town Car Signature - Current Party Barge

  16. #216
    88 LTC nfldfordltd's Avatar
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    Seems to be clean now and running a lot better, though still not perfect. I'm accusing the gasket of leaking and not the parts being bad (for now anyway).
    Bypass is the next step if there's any more trouble.

    Summer car-> 1988 Lincoln Town Car, triple blue, 267,xxx km. Out for 2017, new HO 5.0 in and running. Bought 2006/08/22. June 2017 PotM!
    Winter vehicle-> 1996 Ford F-150 XL 4x4, orange, 302,xxx+km. AKA "King Billy". Takes the beating like no vehicle should ever have to. Bought 2013/11/26.

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

  17. #217
    88 LTC nfldfordltd's Avatar
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    Replaced the three-year old Standard Motor Products O2 sensors last weekend with brand new NTK parts. Runs a LOT better now than it did when warm and the O2 sensor codes are gone, for now at least.

    Summer car-> 1988 Lincoln Town Car, triple blue, 267,xxx km. Out for 2017, new HO 5.0 in and running. Bought 2006/08/22. June 2017 PotM!
    Winter vehicle-> 1996 Ford F-150 XL 4x4, orange, 302,xxx+km. AKA "King Billy". Takes the beating like no vehicle should ever have to. Bought 2013/11/26.

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

  18. #218
    88 LTC nfldfordltd's Avatar
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    Still idles like shit. I posted a video on facebook of it a little while ago:
    https://www.facebook.com/josh.sincla...2868632735354/
    No codes related to how it would run (ie MAP, TPS, O2, etc.)
    Also likes to really bog, stumble and backfire under load at low RPM under WOT (stop to 25 MPH).

    So yesterday I did the following things to try and sort it out:
    Changed the plugs for new Autolite Copper plugs
    Changed the TFI module
    Changed the ignition coil
    Changed the MAP sensor (with a used one I had laying about)
    Checked TPS voltage. About .9v at idle position, just over 4v at WOT. New TPS and MAP ordered just for the hell of it.
    Switched O2 sensor connectors from side to side
    Filled up with premium gas (gas that was in the car was what sat in the tank all winter)

    Result was a *slightly* smoother idle, but now it runs like absolute garbage under part throttle while driving it. Feels like the plug wires have been switched around and it's wired wrong. Constantly bucking, misfiring and backfiring. It's been hard on gas since the HO conversion, which is also when it started running bad. Old engine was an environmental disaster with the oil leaks, it rattled and clattered while cold but ran silky smooth and still pulled hard on the bottom end, and was good on gas. New setup is the opposite; it idles without knocking, pulls hard at speed, bogs and runs like shit at idle and down low, burns gas like a champ, and does not use any oil.
    During the process of switching the O2 connectors, I broke the orange ground wire off the back of the intake manifold. But, the driveability problems I described were like it both before and after the ground wire got broken.

    93 truck engine block with E7 heads
    Original upper intake manifold, EGR spacer bored out to 58mm to match the 86 Mustang TB that has been reversed for LH intake panther setup.
    IAC is new within last 5 years, cleaned annually (it's never dirty when removed, entire intake system is clean since I fixed the coolant leak)
    New 19 lb fuel injectors. Fuel pressure and flow OK
    New 155 lph BBK fuel pump
    86 Mustang 5.0 HO camshaft
    All new engine internals. Valvetrain new except for valves and valve springs
    ECM is a Lincoln Mark VII part, unsure of exact year or three-digit ID code. Cruise control still works
    EGR and all related components deleted. No EGR codes from reader
    Cats cleaned out, smog pump and all related components are removed
    Lincoln Logs for headers
    NTK O2 sensors <2 years old
    New VSS

    Any ideas? I'm starting to lose my patience with this...."do an HO conversion" they said, "it will be fun" they said...nothing but headaches since I did it. Can't get it to run right now for about two years.

    I understand the HO is going to be a dog on the bottom end off the line, especially with my 3.08 gears due to the cam's higher revving tendencies than the original lopo unit. But that shouldn't include backfiring and abysmal fuel economy, rough idling, stalling, etc.

    Thanks in advance

    Summer car-> 1988 Lincoln Town Car, triple blue, 267,xxx km. Out for 2017, new HO 5.0 in and running. Bought 2006/08/22. June 2017 PotM!
    Winter vehicle-> 1996 Ford F-150 XL 4x4, orange, 302,xxx+km. AKA "King Billy". Takes the beating like no vehicle should ever have to. Bought 2013/11/26.

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

  19. #219

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    Make sure the ecu is from an 88+ or else its not an ho computer. Thats just from a quick search so it may not matter but Im thinking if its an 86-87 ecu its the same lopo firing order and thats why youre having issues.


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  20. #220
    I'm an air-conditioned gypsy gadget73's Avatar
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    check the air and coolant temp sensor voltages. That sounds a lot like what they do when they're fucky.

    http://www.grandmarq.net/oldfuelinjection/page10.html

    The ECT is what triggers closed loop operation. If it never hits 160, the O2 sensors never turn on. The ACT is what triggers long term fuel trim learning, but it also has a lot to do with cold and hot restarts. They can fail to respond properly but not in such a way that they are out of the sanity range so the ECM will not report a code for them.

    Also worth confirming how much manifold vacuum you have. If its under 17", it will hunt like this and there isn't a lot to be done for it short of finding the root cause.

    and to ask the stupid question, the plug wires are in the right spot, and nobody re-pinned the injector harness to "fix" the firing order right? O2 sensors are not reversed side to side? Doing that will make the fuel trim all retarded too.

    86-87 LSC were HO. If the cruise works, its 88+ though. The 86-87 did not have integrated cruise control, and using one of those on an '88 Towncar would make the cruise not work.
    Last edited by gadget73; 05-13-2019 at 04:52 PM.

    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 SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

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

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