Need help...

[frankMart]

well, first post here but i have a lot of time reading this forum.

 

i have a '87 base comanche 2.5 i4, the problem is: i changed the water pump and made brake booster upgrade, the truck sat for about 5 days 'cause is a little hard to find parts for comanches where i live. when i start it, it make a sound like explosions that come near the throttle body. when i parked it everything was ok. i checke plugs, rotor, cables, vacuum lines.

 

maybe somebody can help me, i don't know what's happening. :???:

 

pd: sorry for my english, i'll try to improve it..

[vaquaro]

:idea: Vacuum hose from manifold to brake booster ? Might be a good place to start , it's in the area you describe the explosions are coming from .