1998 Sebring No Spark
#1
05-24-2010 | 01:37 AM
Thread Starter
|
Registered User
Joined: Feb 2009
Posts: 38
Likes: 0
From: Roanoke, VA
1998 Sebring No Spark
Got a 98 Chrysler Sebring LXI V6 Coupe that wont start.
Turns over with no spark. Fuses that i have located are fine, has a new crank sensor and so called pre programmed computer for vehicle. Can anybody direct me to a thread or link to diagnose this booger.
I would appreciate some kind of link or thread to:
1)Diagnostic tree
2)Electrical componenent locater
3)Wiring diagram
4)Any Info that would help
Thanks Folks.
Turns over with no spark. Fuses that i have located are fine, has a new crank sensor and so called pre programmed computer for vehicle. Can anybody direct me to a thread or link to diagnose this booger.
I would appreciate some kind of link or thread to:
1)Diagnostic tree
2)Electrical componenent locater
3)Wiring diagram
4)Any Info that would help
Thanks Folks.
#2
07-11-2010 | 08:24 AM
Section Moderator
Joined: Mar 2007
Posts: 4,204
Likes: 1
From: Ohio
http://www.asashop.org/autoinc/april2003/techtips.cfm
http://minimopar.knizefamily.net/ecu/asd_re.html
Bad ASD Relay Symptoms
Usually starts by stalling while driving, progresses into not starting at all, often it will start after several attempts. Engine will have no spark, and you will not hear the fuel pump run when the key is turned on, therefore, no fuel pressure.
These same symptoms have been noticed if a Fuel Pump Relay goes bad or during a computer failure. The Fuel pump relay could cause a loss of spark.
What to check
First of all when you first turn the car on does the Check engine light for a couple seconds? It should as part of the self test when you turn the key on. If it does not then i may be a defective computer, or a burnt out bulb, if the bulb is burnt then you may have a code that you don't even know about. So check that out first.
If your car is a 95-97 perform the key dance. See link for instructions
http://www.2gnt.com/www/files/pcmcode.htm
If you have a 98+ you will need to go someplace such as Autozone, and have them do a free code check. A relay problem usually will not show a code, but if you get a code there is a good chance whatever the code is indicating is causeing your problem.
After the car has sat for a couple minutes with the key off, Turn the key to the ON position, but not far enough to engage the starter. Under normal conditions you will hear the fuel pump run for 2 seconds, to build pressure in the system. The fuel pump is located under the back seat and should be audible from inside the car, or get a friend to stand beside the rear of the car and listen for it.
Check for spark, pull one of the spark pug wire of a plug and insert the metal end of a screwdriver into the end of the wire. Lay the wire and screwdriver onto the metal part of the engine and have someone crank the engine. (dont touch the screwdriver while the engine is cranking or youll be screaming obscenities)
If you see spark and hear the fuel pump than your ASD and Fuel Pump Relays are both good. If you see spark and have no fuel pump noise then i could be the fuel pump relay (or the pump). If the car is experiencing intermittent periods of not starting, then you will need to try this several times. It is possible that the one time you perform these checks, could be the one time the car will start without trouble.
Solutions
The ASD relay is mounted under the hood on the drivers side of the firewall. near the brake fluid master cylinder
Some cars will have 2, 3, or 4 relays in this position, depending on which transmission you have. The Fuel pump Relay is always on the left (passengers side) with the ASD relay beside it. Only Automatic trans cars have the EATX relay, and 95 models have a fourth relay of unknown function.
To replace the relays you have 2 options.
1. Go to the dealer and order a new one. I believe someone payed $20+ at the dealer.
2. Go to your local autoparts store or Radio Shack and buy a 30 amp Bosch style relay. This relay will plug right into your harness and is identical to the original expect it will not clip to the mounting bracket like the original. You can usually disassemble your original and new relays and reassemble the new relay €œguts€ into the original factory housing. This way it will mount to the bracket.
If this does not solve the problem you could be having computer problems, there are several outputs you can check on the computer, before pricing and looking for a new one, so if you are still having difficulties post again
http://minimopar.knizefamily.net/ecu/asd_re.html
Bad ASD Relay Symptoms
Usually starts by stalling while driving, progresses into not starting at all, often it will start after several attempts. Engine will have no spark, and you will not hear the fuel pump run when the key is turned on, therefore, no fuel pressure.
These same symptoms have been noticed if a Fuel Pump Relay goes bad or during a computer failure. The Fuel pump relay could cause a loss of spark.
What to check
First of all when you first turn the car on does the Check engine light for a couple seconds? It should as part of the self test when you turn the key on. If it does not then i may be a defective computer, or a burnt out bulb, if the bulb is burnt then you may have a code that you don't even know about. So check that out first.
If your car is a 95-97 perform the key dance. See link for instructions
http://www.2gnt.com/www/files/pcmcode.htm
If you have a 98+ you will need to go someplace such as Autozone, and have them do a free code check. A relay problem usually will not show a code, but if you get a code there is a good chance whatever the code is indicating is causeing your problem.
After the car has sat for a couple minutes with the key off, Turn the key to the ON position, but not far enough to engage the starter. Under normal conditions you will hear the fuel pump run for 2 seconds, to build pressure in the system. The fuel pump is located under the back seat and should be audible from inside the car, or get a friend to stand beside the rear of the car and listen for it.
Check for spark, pull one of the spark pug wire of a plug and insert the metal end of a screwdriver into the end of the wire. Lay the wire and screwdriver onto the metal part of the engine and have someone crank the engine. (dont touch the screwdriver while the engine is cranking or youll be screaming obscenities)
If you see spark and hear the fuel pump than your ASD and Fuel Pump Relays are both good. If you see spark and have no fuel pump noise then i could be the fuel pump relay (or the pump). If the car is experiencing intermittent periods of not starting, then you will need to try this several times. It is possible that the one time you perform these checks, could be the one time the car will start without trouble.
Solutions
The ASD relay is mounted under the hood on the drivers side of the firewall. near the brake fluid master cylinder
Some cars will have 2, 3, or 4 relays in this position, depending on which transmission you have. The Fuel pump Relay is always on the left (passengers side) with the ASD relay beside it. Only Automatic trans cars have the EATX relay, and 95 models have a fourth relay of unknown function.
To replace the relays you have 2 options.
1. Go to the dealer and order a new one. I believe someone payed $20+ at the dealer.
2. Go to your local autoparts store or Radio Shack and buy a 30 amp Bosch style relay. This relay will plug right into your harness and is identical to the original expect it will not clip to the mounting bracket like the original. You can usually disassemble your original and new relays and reassemble the new relay €œguts€ into the original factory housing. This way it will mount to the bracket.
If this does not solve the problem you could be having computer problems, there are several outputs you can check on the computer, before pricing and looking for a new one, so if you are still having difficulties post again