dodge ram 2500 trouble starting
dodge ram 2500 trouble starting
I have a 2000 dodge ram 2500 runs great but will not start whenever it rains it cranks like crazy but wont turn over if I wait a day it will start up always starts when it is dry out please help.
Re: trouble starting
you need to start with the basics on this one. When it's raining and won't start you need to check for spark, fuel pressure and injector pulse. Check to see if you have good spark at the coil and then check to see if you have good spark at the plug. You could have a weak coil, a bad coil wire, bad spark plug wires or poor cap and rotor condition. Any one of those things would be affected by moisture in the system.
Verify that you have the required fuel pressure for your truck. Fuel pressure spec is 44 to 54 psi but the spec is with the engine idling. So, in most cases key on engine off it would be slightly higher.
Injector pulse could be checked by unplugging an injector and use a test light between the two contacts in the harness connector. If the test light flashes as you crank the engine over it means that you should be getting injector pulse. If it doesn't flash you may have a cam or crank sensor problem, a pcm problem or something between those problems.
anyways check to see if you have all three things working normally and if any one of those things are not present when you're cranking you know what to concentrate on.
Verify that you have the required fuel pressure for your truck. Fuel pressure spec is 44 to 54 psi but the spec is with the engine idling. So, in most cases key on engine off it would be slightly higher.
Injector pulse could be checked by unplugging an injector and use a test light between the two contacts in the harness connector. If the test light flashes as you crank the engine over it means that you should be getting injector pulse. If it doesn't flash you may have a cam or crank sensor problem, a pcm problem or something between those problems.
anyways check to see if you have all three things working normally and if any one of those things are not present when you're cranking you know what to concentrate on.
Browse "SIMILAR TOPICS" At The Bottom Of This Page.
Re: trouble starting
victorb wrote:
> I have a 2000 dodge ram 2500 runs great but will not start whenever it
> rains it cranks like crazy but wont turn over if I wait a day it will start
> up always starts when it is dry out please help Moisture can build up in Distributor when it rains out, dry inside of cap and see if it will start.
> I have a 2000 dodge ram 2500 runs great but will not start whenever it
> rains it cranks like crazy but wont turn over if I wait a day it will start
> up always starts when it is dry out please help Moisture can build up in Distributor when it rains out, dry inside of cap and see if it will start.
Re: trouble starting
i have a 2000 Dakota that misfires, backfires and won't start when it rains. the distributor is at the back of the 3.9L engine.
the weather proof gasket between the top of the firewall and under side of the hood has deteriorated to the point that water (from rain) is getting on the distributor and causing problems for spark distribution from the distributor. check and make sure there is a good water seal under the hood.
the weather proof gasket between the top of the firewall and under side of the hood has deteriorated to the point that water (from rain) is getting on the distributor and causing problems for spark distribution from the distributor. check and make sure there is a good water seal under the hood.
-
- Similar Topics
- Replies
- Views
- Last post
-
-
New post 98 dodge ram 2500 v10 starting problem
by psycomyko » Mon Jul 28, 2014 7:30 pm » in Dodge And Chrysler - 4 Replies
- 6814 Views
-
Last post by Guest
Sat Dec 31, 2016 10:21 pm
-
-
- 1 Replies
- 8405 Views
-
Last post by carriedi
Sun Apr 30, 2023 8:00 pm
-
- 1 Replies
- 9629 Views
-
Last post by carriedi
Fri Aug 05, 2022 4:13 am
-
- 1 Replies
- 8159 Views
-
Last post by carriedi
Mon Jul 31, 2023 10:27 am
-
- 7 Replies
- 15035 Views
-
Last post by carriedi
Sun Sep 16, 2018 3:16 pm