Engine wont run?

Tiny
2CARPROS-ARCHIVES
  • MEMBER
  • 1991 PLYMOUTH ACCLAIM
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 133,000 MILES
1991 Plymouth Acclaim mileage: 133,000. Yesterday my wife drove to work, when she pulled into the parking lot and stopped at a stop sign the car died and would not start. It appears that it is not getting a spark. I took off one of the spark plug wires and grounded it while trying to start it, no spark. I thought it must be the coil, bought a new one and replaced the old coil and still no spark at all (Not even from the coil itself). I took off the top wire and grounded it with a screwdriver and still nothing. I've checked the wires, the distributor and cap, the rotor, nothing is cracked or wet. Someone said something to me about the pick up sensor under the distributor. Do you have any suggestions?
Was this
answer
helpful?
Yes
No
Friday, July 24th, 2020 AT 6:20 PM (Merged)
Tiny
2CARPROS-ARCHIVES
  • MEMBER
Here are some things to have checked: 1. Check to see if the timing belt has failed, 2. Check for fuel pressure, 3. Scan P.C.M. (Computer) for fault or error codes. The information should pinpoint the malfunctioning components.
Was this
answer
helpful?
Yes
No
+1
Friday, July 24th, 2020 AT 6:20 PM (Merged)
Tiny
MISSMAC_33
  • MEMBER
I don't have an rpm meter so I'm not sure how I'm supposed to get an rpm signal. And the other thing I notice when trying to start it is that the battery seems to drain after the first time. It starts out with enough battery after sitting for a night.
Was this
answer
helpful?
Yes
No
Friday, July 24th, 2020 AT 6:20 PM (Merged)
Tiny
JDL
  • EXPERT
You have to use a scanner that shows live engine data. If there is no spark or only one and no fuel injector pulse, then I suspect the computer either doesn't see an rpm sinal or isn't reacting to it. There is a hall switch in the distributor, that's where the rpm signal comes from. It could be several issues, hard to be sure without testing.
Was this
answer
helpful?
Yes
No
Friday, July 24th, 2020 AT 6:20 PM (Merged)
Tiny
JDL
  • EXPERT
You may have to take the battery off and get it charged.
Was this
answer
helpful?
Yes
No
Friday, July 24th, 2020 AT 6:20 PM (Merged)
Tiny
MISSMAC_33
  • MEMBER
What exactly is an asd relay and what does it do?
Was this
answer
helpful?
Yes
No
Friday, July 24th, 2020 AT 6:20 PM (Merged)
Tiny
JDL
  • EXPERT
Without proper test instruments and the fact that I can't see your vehicle from here, it makes it harder. You can test for ref voltage--ground and signal from hall switch. Without at least a digital multimeter, it's hard to do anything.
Was this
answer
helpful?
Yes
No
Friday, July 24th, 2020 AT 6:20 PM (Merged)
Tiny
MISSMAC_33
  • MEMBER
Okay. But what is an asd relay and what does it do?
Was this
answer
helpful?
Yes
No
Friday, July 24th, 2020 AT 6:20 PM (Merged)
Tiny
DANNYO
  • MEMBER
  • 1991 PLYMOUTH ACCLAIM
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 94,000 MILES
My 1991 Acclaim won't start. I have no spark from coil to distributor. Changed coil. Didn't help. Any ideas?
Was this
answer
helpful?
Yes
No
Friday, July 24th, 2020 AT 6:20 PM (Merged)
Tiny
JDL
  • EXPERT
Hello, did you test the coil primary circuits for voltage. The positive and negative terminals, engine cranking. Is the coil wire ok? Any troublecodes?
Was this
answer
helpful?
Yes
No
Friday, July 24th, 2020 AT 6:20 PM (Merged)
Tiny
JDL
  • EXPERT
If your battery is down, we're just spinning our wheels. The asd relay supplies primary voltage to the ignition coil-- voltage to the fuel injector-- voltage to the 02 heater circuit-- voltage to the fuel pump, according to my info. If you want to replace the relay, that is up to you. You may get lucky?
Was this
answer
helpful?
Yes
No
Friday, July 24th, 2020 AT 6:20 PM (Merged)
Tiny
DANNYO
  • MEMBER
I get.0007 on both legs of coil input. Codes 12 35 32 21 55. The coil wire is ok
Was this
answer
helpful?
Yes
No
Friday, July 24th, 2020 AT 6:20 PM (Merged)
Tiny
JDL
  • EXPERT
Just to add, if there is more than one relay in the relay pack, look at them, if they are the same as asd relay, swap that relay, see if it helps?
Was this
answer
helpful?
Yes
No
Friday, July 24th, 2020 AT 6:20 PM (Merged)
Tiny
JDL
  • EXPERT
Is the battery and cables ok? I didn't see anything in the codes, that might cause a no spark condition. I'd probable check the hall switch in the distributor, first. Three wire connector, ref voltage--signal-- ground, that is the rpm signal, without that signal, you get nothing.

That should be close to battery voltage at the coil and injectors, during cranking.
Was this
answer
helpful?
Yes
No
+1
Friday, July 24th, 2020 AT 6:20 PM (Merged)
Tiny
MISSMAC_33
  • MEMBER
I gotcha. Well I replaced it with my a/c relay and now I hear the fuel pump but only after trying to start the car. I am charging the battery to see if it will start with a full charge but otherwise I'm out of ideas.
Was this
answer
helpful?
Yes
No
Friday, July 24th, 2020 AT 6:20 PM (Merged)
Tiny
DANNYO
  • MEMBER
I don't have 12v at the coil before during or after cranking. Someone told me it could be a maxi-breaker? There are 5 Maxi-breakers on the wheel well. I don't know which is for ignition. Any Ideas?
Was this
answer
helpful?
Yes
No
+1
Friday, July 24th, 2020 AT 6:21 PM (Merged)
Tiny
JDL
  • EXPERT
Below is the location of asd relay.
Was this
answer
helpful?
Yes
No
+1
Friday, July 24th, 2020 AT 6:21 PM (Merged)
Tiny
JDL
  • EXPERT
Did you check for codes? You cycle the key, on--off, on---off, on, then the check engine lite goes to flashing, you count the flashes to get the codes. When you cycle the switch, you don't crank it. Under the hood driver side, the asd relay shows to be the forward most relay. The asd relay supplies voltage to the coil--injectos--fuel pump, during cranking. You'll have to check for voltage and ground at the relay.
Was this
answer
helpful?
Yes
No
Friday, July 24th, 2020 AT 6:21 PM (Merged)
Tiny
MISSMAC_33
  • MEMBER
Well the battery charged fully and I tried to start it but still not working. The battery went from 100-0 after starting it. Like I said before, I switched out the asd relay with another and immediately after trying to start the car I hear the fuel pump but not before.
Was this
answer
helpful?
Yes
No
Friday, July 24th, 2020 AT 6:21 PM (Merged)
Tiny
DANNYO
  • MEMBER
The codes are
I get.0007 on both legs of coil input. Codes 12 35 32 21 55. The coil wire is ok what does the asd relay look like? Is it on driver side wheel well?
Was this
answer
helpful?
Yes
No
+1
Friday, July 24th, 2020 AT 6:21 PM (Merged)

Please login or register to post a reply.

Sponsored links