Question about 1993 Pontiac Grand Prix

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93 grand prix

Car turns over but does not spark and run. already changed a blown fuse and also the crank sensor has been changed too. coil packs have been changed about four months ago. what can i do?

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Look under hood for main fuse panel, make sure relay for eng. control module is good. Most of relays in that panel are the same, just swap one around or you can check conuity on relay

Posted on Oct 03, 2008

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2 Answers

93 Jeep Grand Cherokee, no spark from ignition coil


so gue$$ stinks sure.... why do that.?
all it takes is a scan tool to find this.

first you need to learn ASD relay rules.
to start a jeep 1993 to NOW.
the ASD most close, cranking,does it?
and most stay closed cranking and NOT drop out in 3 seconds.
that means crank for 5 seconds and if the ASD drops. at 3.?
easy huh?
if it did DROP i can tell you the ECU will set DTC errors you failed to see because you did not scan it during those 5 seconds.

http://www.fixkick.com/Jeeps/ASD.html

first is fuses.
lets make a list. works on all jeeps 93+
  1. battery changed. to 12.6vdc reseted.
  2. keyon, CEL lamp glows, if not fuse blown to PCM (ECU)
  3. engine cranks fast.
  4. Asd realy pulls in and holds.
  5. scan tool shows, what? BINGO. DTC errors, easy huh?
  6. ok no DTC, errors, live for 5 seconds, cranking,so lost spark? must be bad coil or wired wrong. (change it 1 wire at a time?ooops)
  7. coil dead, its not DTC caused, so if no DTC that means the PCM did not see Coil ignitor errors. to coil see? i bet its got TDC;s if not then i check the coil inputs. to be sure the PCM ignitor is firing the coil correctly with my scope, oops no scope.
  8. if no scope you get to buy a new PCM. Wild guessing bad ignitor.
  9. i use a Innova 3140 scan too that does 93-95 jeeps, for about $150 only about 1.5 hrs shop labor value. and is Investment grade tool, it would have saved you 3 parts, guessed already.

Mar 18, 2015 | 1993 Jeep Grand Cherokee

2 Answers

How to check a ignition coil pack to see if its good,


the coil does not crank the engine , the starter does that, sorry.
(if you ever had to hand or foot crank and engine , youd under stand that. (like motor cycles or boat engines, or per 30s cars.)

in fact will crank all day with no spark parts on car..

x2, the scan tool does tell you why there is NO STARTS, CRANKS OK. The pcm can detect, one missfire in 10 cmp;ckp signals.
  • CRANK FOR 5 SECONDS
  • release, key
  • scan tool has DTC errors?, read the believe them.
no engine stated of 4 or more,

U checked everything but spark,
why, check spark at all cylinders, all most fire or the engine will not run or stall.
That test be first, if not starting (AFTER SCAN TEST)

IF NO spark fuses are next , not last.
lets do no start fails tests. (cranks perfectly 200 to 300 rpm)
  1. : check fuses
  2. key on, CEL lamp must glow, if not , ECU fuse blown.
  3. crank with scan tool , see P03xx DTC errors, see RPM dead.?
  4. check for spark? got spark x4 or times number of cylinders?
  5. got spark try test fuel now, runs for 3 seconds?
  6. yes, runs on test fuel now means lost fueling
  7. no, dont run on test fuel, means, 1 to 5 done wrong above or engine compression bad.
  8. bad fueling, huge number of tests. check fuel pressure now.
confused, try a shop and watch them, learn.

Jan 12, 2015 | 2005 Suzuki Forenza

1 Answer

So i have a problem with my 2002 grand prix gt it has 120,000 miles on it. i was coming home from work one night and the low coolant light came on it got pretty hot but i made it home. My dad put coolant...


Check for spark at the plugs and check the fuel pressure. Also remove the spark plugs and check for fouled or wet plugs. A plug that is saturated with gas will not spark. Clean the plugs and dry them off and try to start. If all looks good then check cylinder compression to check for a blown head gasket.

Sep 05, 2011 | 2002 Pontiac Grand Prix

2 Answers

Not getting any spark 1995 pontiac grand prix se 3.1 engine please help


the cheapest and quickest way to check for spark is replace your crank sensor if youve done this and you still have no spark then try a coil pack.

Mar 27, 2010 | 1995 Pontiac Grand Prix

2 Answers

I have a 93 Eagle Talon with good fuel pressure and no spark


could be crank & cam sensor if they do not meet in sinc they will not get spark

Nov 13, 2009 | 1993 Eagle Talon

2 Answers

96 grand prix se engine problems


Your problem may be a faulty (shorted) ignition coil housing assembly (the white plastic cover housing the coils its bolted to the aluminum cover) change that along with the spark plug boots ( the boots are optional but I recommend it) that should get your Grand Prix running smooth. Good luck and keep me posted, be glad to help

Jun 10, 2009 | 1996 Pontiac Grand Prix

1 Answer

My car will turn over but will not crank. I have changed the spark plugs and also the fuel filter 1983 pontiac grand prix. Not sure what it will be please help


if you have a 3.1 or the 2.8 the coil packs are on the bottom front of the motor. see if your get fire from that ok . but iam pretty sure its your coil . have a nice day

Mar 29, 2009 | 1983 Pontiac Grand Prix

1 Answer

Car drives good but it died while driving


I'm leaning toward a bad crankshaft sensor. There's a couple of experienced GM guys on here, so we'll pass it by them first just to be sure.

Jan 03, 2009 | 1993 Pontiac Grand Prix

1 Answer

1992 pontiac grand prix cranks but will not start


there is a module that the coil pacs plug into, it may be bad or have a bad connection

Nov 21, 2008 | 1992 Pontiac Grand Prix

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