Ram 1500 won't start - I'm stumped
#1
11-21-2010, 05:15 PM
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Ram 1500 won't start - I'm stumped
Need some advise, I bought a 96 Dodge Ram, 1500 , 4 wheel drive, 5.9L engine, automatic transmission, with about 124,000 miles.
After about a week the check engine light came on. I found the following codes;
12 - Battery disconnect
31 - canister purge solenoid circuit
17 - Engine too cold for too long.
This weekend I was planning to replace the thermostat and check out the evap stuff, but when I went out to bring it into the garage, the truck would not start.
Cranks very good - so I know the battery / starter are not the problem.
I pulled the coil wire from the distributor and got good spark while cranking.
I pulled one of the plug wires, and I have good spark to the end of the plug wire.
I don't have a fuel pressure gauge, but I press the valve stem on the fuel rail and gas come out, so I know I have fuel present and at least some pressure - okay I don't know I have some pressure, but I know there is fuel present in the rail.
I pour a small amount of gas into the throttle body and crank - but it doesn't fire. I try some starting fluid at the throttle body and still doesn't fire.
I plugged in a "noid" light at one of the injectors and the light blinks while cranking.
I have no reason to suspect internal engine issues, I drove it home last night and it was running fine when I shut it off.
It seems like an ignition problem, since I can't get it to fire after dumping gas down the throttle body, but I have good spark to the end of (at least one of the) plug wires.
I'm at the end of my troubleshooting ideas..... help?
After about a week the check engine light came on. I found the following codes;
12 - Battery disconnect
31 - canister purge solenoid circuit
17 - Engine too cold for too long.
This weekend I was planning to replace the thermostat and check out the evap stuff, but when I went out to bring it into the garage, the truck would not start.
Cranks very good - so I know the battery / starter are not the problem.
I pulled the coil wire from the distributor and got good spark while cranking.
I pulled one of the plug wires, and I have good spark to the end of the plug wire.
I don't have a fuel pressure gauge, but I press the valve stem on the fuel rail and gas come out, so I know I have fuel present and at least some pressure - okay I don't know I have some pressure, but I know there is fuel present in the rail.
I pour a small amount of gas into the throttle body and crank - but it doesn't fire. I try some starting fluid at the throttle body and still doesn't fire.
I plugged in a "noid" light at one of the injectors and the light blinks while cranking.
I have no reason to suspect internal engine issues, I drove it home last night and it was running fine when I shut it off.
It seems like an ignition problem, since I can't get it to fire after dumping gas down the throttle body, but I have good spark to the end of (at least one of the) plug wires.
I'm at the end of my troubleshooting ideas..... help?
#2
11-21-2010, 06:08 PM
#3
11-21-2010, 07:10 PM
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i agree with the coolant temp sensor being bad.i just did 1 on chevy 3500 the gauge read fine but the engine was hesitating when warm and running very rich ,checked it with the scanner and found the temp sensor was reading -21 f. at operating temp.
Last edited by rond97sport; 11-21-2010 at 07:14 PM.
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11-22-2010, 08:58 PM
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#5
11-23-2010, 01:25 PM
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