Where is the cars computer on a 1988 lincoln town car
I have done the following: tune up, replaced fuel pump, and cleaned all the sensors around the carboratorl. The car idles okay until it gets to normal operating temp. Once it gets hot enough it spits and sputters and when I rev the engine it stalls and won't start again until it cools down some.
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Here are Bunch of Well Known Pain in @#$@!%^^$# GM issues to check on ++ any or 2 or more will cause Surging and Stalling ....I am thinking O ring on Fuel injector gets Hot and Loss of Pressure occurs via Cracks in rubber seals ..This occurs in Turn motion when fuel in Rail is sloshed around . Even though pressure allows good starting the Heat 2 Plastic engine parts causes Expansion so a Crack that does not Visible Leak cold will If Searched for Hot ..Recommend a Strong Light even in Daytime to see if Leaks around Intake / Fuel injection areas .. Upper intake Plenum Air intake Gasket NOT SEALING right is common Hot issue on GM s ...Its a V6 the misfire tell me this right away ..Did it misfire before Tune Up ?? Even if it did the issue Now is Spark Plug wires have been Crossed or Wired out of Sequence / Order ...SOLUTION will cover many checks you must make . 1 st be sure Plug # 1 and each firing order Plug wire is matched up To proper ## on Magneto or Black plastic squarish box near valve cover ..OFTEN firing order was Clockwise on Ford / GM - that is old Distributor days ... Magneto driven is Left 2 Right.....Idle Surge is Present under Mis Wired conditions BUT you may check Magneto for Clean Ground surface in mounting bracket ...The Mags do false and wear out due 2 Heat so a Good Ground 2 Base mounting is needed .... Mechanics call them Coil Packs A Very Common since 1983 GM problem ....Buy aftermarket if Continuity Test proves they are Weak - Bosch or Standard make good Ignition parts . Since a Tune up was Done MAKE Sure plug wires have been Seated or Pushed on Tightly ..A CLEAN Air Filter can provide proper Air Flow at Start up - so Hold up to Sun Light then Flex it against Light 2 see if Lots of Light this will determine its Ability to Draw air ..NAPA sells a Spray Can = 10 bucks for Electronics cleaner that is used 2 Clean Mass air flow sensor visible when hose connections removed ..ALSO spray clean Intake air Temp sensor a small 2 wire attachment visible on outside of air intake hose .. The following is Called Fogging to Clean Fuel injection and is Best Done with Engine Running or Started right after all Below Items have been Spray cleaned +++ after 1 st spraying You must Rev engine 2 open Throttle plate and spray in direction of each Item .. The disconnected air box ++ intake Air Temp sensor with hose can be Off for Fogging Procedure but Wires plugged in .... Clean Throttle body intake at Plenum - or Intake at end of hose connection 2 main Fuel injectin Air intake .To do this remove Hose - Open Throttle via Someones help on Gas pedal or manually move it at Gas pedal cable connection - Then spray cleaner and be sure 2 get Idle control solenoid Tip visible when Throttle plate opens also on other side of this open plate is 2 nd Tip for EGR sensor be sure 2 spray it .. Final worst case issue is Fuel Pump in Tank can be Wearing out . Why you ask ?? You said young person Driving and If Poor Like me Then driving below 1 / 4 tank .. Yes electric fuel pumps when old Loose pressure when near bottom of Tank .. Stalling in / or after a Turn or sudden quick turn ++ Putting into Park after arriving in a sudden fashion will shift weight of car forward causing Gas in Tank To slosh / Move around .. All this Rapid movement moves Gas around and WILL Interfer with Inside of Tank electric Fuel pump ...Fuel supply interupt will cause misfire codes ...Driving habits by Old or Young often Help Pin Point a cause So see if any Trouble on Full Tank - If not Then Low fuel points Too electric fuel pump - Sadly it is inside of Tank = Major Job .. Try the Cheapest Ideals 1 st in my List ...Good Luck an hope it is simple Like a Loose plug wire ..............
Unless your engine has a carburetor, you can't adjust your fuel mixture. That is done by your cars computer. It analyzes your exhaust emissions and adjusts your fuel/air ratio.
Your oxygen sensor(s) may need to be replaced, or there may be a computer glitch causing the problem.
Is the check engine light on? you could have a bad ignition fail sensor, TPS sensor, or bad o2 sensor. it could also be a bad mass air flow sensor or a vacuum leak. without a code to help pin point the problem I'd start by checking those things first. Maybe try unplugging the mass airflow sensor and start it up and see if anything changes.
When you first start the vehicle in the morning, try turning the key to ON for ten seconds before starting the vehicle. If your engine then starts immediately, replace the fuel pressure regulator. If it does not solve the problem, perform a major tune-up.
If your CHECK ENGINE light is illuminated, check ODB codes to determine fault.
The 5.0L engine in the 1988 Town Car is one of the most reliable engines ever built by Ford, mostly because it is adept at masking problems for a long time before a failure happens. You will find that most failures you encounter will either be fuel-related (usually a clogged fuel filter) or burned spark plug wires.
need to adjust idle speed by turning air adjusting screw on throttle body idle should be 750 - 790 RPM. make sure spark plugs and wires okay. make sure distributor cap and rotor good.replace fuel filter do a little tune because if engine not fine tuned one bad cylinder will cause engine not to idle if you have fuel injection system clean fuel injectors by filling gas tank full add a can of seafoam to fuel tank see what happens.
do code scan for faulty idle air control valve.if idle air control valve okay.could have clogged fuel filter or bad fuel pump.check for loose or damage wires to the alternator or ignition coil or ignition module.could have contaminated fuel with water.replace spark plugs and wire if not done no tune up in long time.