2.5L ('98-'01) Truck takes a while to start then dies

[miketwo0]

I have a 99 b2500 2.5L
Truck takes a while to start and while cranking, it cranks slow then it’ll fire and shut off when I get it very little gas. I’ve put new plugs, wires, new timing belt, all tick marks line up. I’m at lost with this thing

 

[franklin2]

Pulled the codes yet?

 

[miketwo0]

Pulled the codes yet?

P1409
P0102
P1451
I’ve tried starting it with starting fluid and still takes a while so I figured it was fuel related.

 

[franklin2]

P0102 is big. The mass air sensor is important. Check for a mouse nest in the air cleaner system or air piping. If that is ok, check the air filter being too dirty. Then check the mass air flow sensor itself for being dirty. I think you can clean it, do a google search for the proper way.

P1409 is the EGR, you must have it disconnected?

P1451 is the Evap system, I would not worry about it too much right now.

 

[miketwo0]

I have a 99 b2500 2.5L

P0102 is big. The mass air sensor is important. Check for a mouse nest in the air cleaner system or air piping. If that is ok, check the air filter being too dirty. Then check the mass air flow sensor itself for being dirty. I think you can clean it, do a google search for the proper way.

P1409 is the EGR, you must have it disconnected?

P1451 is the Evap system, I would not worry about it too much right now.

P0102 is big. The mass air sensor is important. Check for a mouse nest in the air cleaner system or air piping. If that is ok, check the air filter being too dirty. Then check the mass air flow sensor itself for being dirty. I think you can clean it, do a google search for the proper way.

P1409 is the EGR, you must have it disconnected?

P1451 is the Evap system, I would not worry about it too much right now.

I do have the egr system removed. The pipe was rusted in half and the few pipes I ordered was wrong so I at a dead stop with that. Would the 0102 code cause the truck to just crank and delay the start? It’ll crank and crank then eventually start. I been trying to check compression but the engine Cranks so slow that it’s not accurate

 

[55trucker]

First sort out the issue where the slow cranking engine is concerned, get that out of the way then look for the lack of fire.

 

[miketwo0]

First sort out the issue where the slow cranking engine is concerned, get that out of the way then look for the lack of fire.

I tried a new starter and new battery. Stills slow crank

 

[55trucker]

pull the plugs, does it still crank slow?

 

[miketwo0]

pull the plugs, does it still crank slow?

I’ve pulled one and yea it’ll still slow crank. I’m starting to think it’s something internal cause i just tried to turn it by hand and it has a hard spot in rotation. Even with the starter off

 

[pjtoledo]

that might be a cylinder on compression stroke.
pull all the plugs then crank by hand.
also check the ground & power cables to the block.
have a volt meter?
put it directly on the battery posts, not the terminals, while cranking.

 

[miketwo0]

that might be a cylinder on compression stroke.
pull all the plugs then crank by hand.
also check the ground & power cables to the block.
have a volt meter?
put it directly on the battery posts, not the terminals, while cranking.

 

[miketwo0]

that might be a cylinder on compression stroke.
pull all the plugs then crank by hand.
also check the ground & power cables to the block.
have a volt meter?
put it directly on the battery posts, not the terminals, while cranking.

Okay I’m going to try that. But can you explain what exactly you mean by a cylinder on compression stroke

 

[alwaysFlOoReD]

The engine you have is a 4 stroke engine. Most vehicles have this type engine. There is
1) intake
2) compression
3) power
4) exhaust
When the engine is on its compression stroke all valves are closed and it's much harder to turn the engine. You can hear or feel the air come out of the sparkplug hole when the engine is turning over fast enough.

 

[miketwo0]

The engine you have is a 4 stroke engine. Most vehicles have this type engine. There is
1) intake
2) compression
3) power
4) exhaust
When the engine is on its compression stroke all valves are closed and it's much harder to turn the engine. You can hear or feel the air come out of the sparkplug hole when the engine is turning over fast enough.

So the internals could actually be fine? I figured internals were shot because when I try to start the truck, it stops cranking for a second then start back up. I have a video of it if I can figure out how to post it

 

[miketwo0]

The engine you have is a 4 stroke engine. Most vehicles have this type engine. There is
1) intake
2) compression
3) power
4) exhaust
When the engine is on its compression stroke all valves are closed and it's much harder to turn the engine. You can hear or feel the air come out of the sparkplug hole when the engine is turning over fast enough.

I tried checking compression but engine cranks so slow that I feel like I’m not getting an accurate reading