Cadillac Repair: 92 Fleetwood hardstarting/surging idle/hesitation, fleetwood brougham, manual haynes


Question
QUESTION: I have a 1992 Fleetwood Brougham with the the 5.0L FI engine, and here lately I've experienced hard starting, surging idle when cold, with no acceleration, & hesitation, until it warms up.  When I try to accelerate, the engine acts like it's not getting fuel, but continues to run when I let off on the pedal.  When I shut down for a few(10-20) minutes, the whole process starts over again.  When fully warmed up, it runs good.  I have replaced the distributor cap and rotor and spark plugs, but no change.  What's wrong, or what am I missing?

ANSWER: IS or HAS the CHECK ENGINE light ever illuminated on the dash while driving the vehicle ?.


---------- FOLLOW-UP ----------

QUESTION: No, and I'm not so sure that this car is equipped with such a system.  I haven't found any references to CHECK ENGINE outputs in my repair manual(Haynes).  Also, along the way I added some injector cleaner(Gumout) which seems to be helping in that respect, but not the original problem.  Likewise, I filled my tank with Sunoco gasoline to see if I had some bad gas(usually Hess or Costco).  No change yet from that.  Thanks for the attention, and I hope you can help.  -R.

Answer
When you turn the ignition key to the ON position WITHOUT starting the engine you should see a yellow light that says CHECK ENGINE on the dash.

E-mail onlineautohelp@msn.com for a picture location of the light if you do not see one with the ignition switch ON.