Help? 98 Lincoln Mark vii dies when slowing down or stopping after being on the road for an hour or so,

Asked by Jun 11, 2013 at 10:43 PM about the 1989 Lincoln Mark VII LSC

Question type: Maintenance & Repair

Won't start for at least 30 min to an hour or more. Engine light does not come on.
Plenty of coolant. What could be the problem?

2 Answers

100,535

Temperature induced failure, could be coil pack, crank and or cam sensor, over heated fuel pump, ECM failure. I would try to get the codes from the computer, there may be something in the memory that will help with diagnosis.

1 of 1 people found this helpful.
25,595

Not that complicated- only two components have that type of failure/symptom. There are no cam or crank sensors on your '89 302 v8. The ignition module mounted to the side of your distributor is the most likely culprit. Check for spark when it won't start. No spark = the ignition module isn't tripping the coil. Because of the design of that module (Schmitt Switch and Darlington Amplifier), the duty cycle on the coil is very near 99%. Lots of current and lots of heat for a long time in the module cause it to shut down. If your vehicle has spark but still won't start, check the fuel pressure. Simply pressing the schrader valve on the fuel rail will spurt fuel but won't indicate it's volume and / or pressure. You need a gauge. BTW - neither failure will trip a code or a check engine light on this old EECIV / OBD1 system.

2 of 2 people found this helpful.

Your Answer

Lincoln Mark VII Experts

  • #1
    oldschoolone
    Reputation
    190
  • #2
    Tom Demyan
    Reputation
    160
  • #3
    DSO84BlackBeauty1
    Reputation
    150
View All

Related Models For Sale

Used Lincoln Continental
17 Great Deals out of 4,242 listings starting at $35,788
Used Ford Mustang
692 Great Deals out of 37,934 listings starting at $895
Used Lincoln Town Car
35 Great Deals out of 1,774 listings starting at $1,500
Used Nissan Maxima
285 Great Deals out of 23,179 listings starting at $799
Used Chevrolet Monte Carlo
10 Great Deals out of 1,300 listings starting at $2,500
Used Ford Thunderbird
19 Great Deals out of 1,061 listings starting at $6,950
Used Ford F-150
2,284 Great Deals out of 184,003 listings starting at $699

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.