b2600i cranks..will not start

[lakes73@gmail.com]

92 mazda b2600i...had ecm re-built...cranks,but will not start?..HELP...what do i look for?...trk is a 5-speed..4x4..95k..extra cab

[Tyranitar]

Ok, you need three things to run and engine, fuel, ignition, and compression. One of those is missing. You need to do some good old fashioned troubleshooting and figure out which of those three things is absent Loosing all compression so that an engine wont start is almost impossible, so focus on fuel and ignition.

[jrandchasesmom@yahoo.com]

92 mazda b2600i...had ecm re-built...cranks,but will not start?..HELP...what do i look for?...trk is a 5-speed..4x4..95k..extra cab[/b]

I had this same problem on my 1989 b2600 and replaced ignition switch harness and it fixed the problem

[lakes73@gmail.com]

Ok, you need three things to run and engine, fuel, ignition, and compression. One of those is missing. You need to do some good old fashioned troubleshooting and figure out which of those three things is absent Loosing all compression so that an engine wont start is almost impossible, so focus on fuel and ignition.[/b]

[lakes73@gmail.com]

hi,i have no spark..replaced the coil..still no spark..how do i check for fuel?...truck was running great..had a big hiccup at 70mph..would not start after that..could it be the fuel pump or fuel pump relay..if so where is the relay located?..tks!

[jayratliff12@yahoo.com]

the easiest way to check for fuel is to disconnect the fuel line at the fuel filter and put the line in a clear bottle. you will need to crack the engine to enable the fuel flow, the pump will not prime when the key is turned on, you will need to crank the engine. as far as spark... it could be a signal problem from the computer to the distributor or i suppose it could be the whole distributor. you should get a check engine light for that.

[cviola2005@yahoo.com]

check your fuses first. then use a test light to check the terminals on the coil. i dont know what color the wires is, but one of them should be 12v positive with the key on. if neither turn the light on, use a jumper wire from the battery (fused if you can) and connect to the wire that should be positive, then try to crank it.

[Tyranitar]

If the coil is not getting power, the most likely culprit is the pickup coil or optical pickup located inside the distributor. You can test this with a scope. If you don't have access to a scope, you will likely have to bite the bullet and replace it. The coil is not available on its own, you have to buy a complete rebuilt distributor. But try to run some electrical tests before jumping to that conclusion, otherwise you may spend a bunch of money and not fix the problem.