Steve777
Member
- Joined
- Dec 23, 2017
- Messages
- 16
- Reaction score
- 0
- Location
- Colorado
- Vehicle Year
- 1994
- Make / Model
- mazda
- Engine Size
- 4.0l
- Transmission
- Manual
Well after years of flawless running, my 1994 B4000 finally is having a problem. The engine light came on a couple of days ago, no symptoms and it was gone the next time I started the truck. Then today the engine light came on after starting and stayed on. Tried turning the engine off and restarting it, but even though it would crank it would not fire at all. Let it sit about 30 mins, and then it was back to how it was before, would start and run but the engine light came and stayed on shortly after starting.
I let the engine warm up and then pulled the codes by sorting the test plug. Only one code, a 33. Which seems to be EGR related. I have done some searching here, and it seems that it may be vacuum hose leak related, or the solenoid related or perhaps the EGR valve is stuck. Since I have not had to dig into any problems with this truck yet, I am not sure where all these parts are, or which ones are the most likely culprits. So I thought I would ask here for advise. Where's the "low hanging fruit" here, what should I check first? Anyone willing to chime in.
I let the engine warm up and then pulled the codes by sorting the test plug. Only one code, a 33. Which seems to be EGR related. I have done some searching here, and it seems that it may be vacuum hose leak related, or the solenoid related or perhaps the EGR valve is stuck. Since I have not had to dig into any problems with this truck yet, I am not sure where all these parts are, or which ones are the most likely culprits. So I thought I would ask here for advise. Where's the "low hanging fruit" here, what should I check first? Anyone willing to chime in.
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