Intermittant starting issue
10-13-2013, 10:57 AM
#1
Super Member
Thread Starter
Intermittant starting issue
Recently my 99 c43 has developed an intermittent starting issue.Turn key fires up than dies..sometimes will idle for say 5-7 sec than dies.Sometimes needs a few attempts than idles fine.This happens regardless if car is at operating temp or cold start.Car runs great and pulls hard.CPS sensor was replaced several years ago under recall.No CEL.Any ideas? Thanks!
10-14-2013, 02:10 PM
#4
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1999 C43 AMG, 2005 E55 Wagon
Mine suddenly did this at a gas station once. Starts fine, idles for a split second, dies. It did it roughly 5 times and had me freaking out, but suddenly started up fine and has been fine ever since. I guess that's CPS? There's no CEL.
Did you get your's changed, Shawn? Did that fix it?
Did you get your's changed, Shawn? Did that fix it?
10-14-2013, 02:23 PM
#5
Super Member
My money is on the security system as I have had this happen alot also but only ever happens with my new key. Im yet to prove it but evidence is strong as it hasnt happend once in the last 4 months with the original key. Its like everybody shakes hands and the engine starts but suddenly bob the key realises jim(ecu)is sleeping with bobs wife monica(eis) and the party is off.
Cps have different symptoms, engine will crank and not start, or start but when hot it will not resart until cooled, or if in slow traffic sensor heats up enough engine will die. Depends on how far gone the sensor is.
Cps have different symptoms, engine will crank and not start, or start but when hot it will not resart until cooled, or if in slow traffic sensor heats up enough engine will die. Depends on how far gone the sensor is.
Last edited by Pagz; 10-14-2013 at 02:39 PM.
10-14-2013, 02:38 PM
#6
MBWorld Fanatic!
Recently my 99 c43 has developed an intermittent starting issue.Turn key fires up than dies..sometimes will idle for say 5-7 sec than dies.Sometimes needs a few attempts than idles fine.This happens regardless if car is at operating temp or cold start.Car runs great and pulls hard.CPS sensor was replaced several years ago under recall.No CEL.Any ideas? Thanks!
10-14-2013, 02:50 PM
#7
Super Member
Hmm, slightly differerent there. Mine would start and die smoothly as the rpm dropped from startup,it would never idle for 5+ seconds.
Would the fuel pump cause other symtoms like rough idle or start?
Would the fuel pump cause other symtoms like rough idle or start?
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10-14-2013, 03:42 PM
#8
MBWorld Fanatic!
rough start, engine cranking but not starting, starting but very rough idle then dying would all be symptoms of a bad fuel pump.
10-14-2013, 06:59 PM
#9
Super Member
Thread Starter
