Problems with the Mazda B4000
Considering getting a pickup means more than just looking at the specs that the manufacturer states. It also means looking at the truck model's history through the years as well as the problems that previous buyers have encountered. Here are some of the issues that you need to know beyond the fact that a Mazda B4000 is a badge engineered Ford Ranger:
Size and design
Despite the fact that it weighs 3,915 pounds and that it carries a 4-liter V6 engine, the B4000's body is too small to carry heavy payloads. Still, it's the biggest of the rebadged Mazda B-series models and it could be good for those who have minimal trucking requirements and a budget that can't go for full-sized pickups.
The Mazda B4000's parts and accessories have also been criticized for their outdated design, especially since the pickup seems to have frozen during its mid-1990s heyday. Details such as the three-spoke steering wheels, tiny grille, and scalloped vents aren't as appealing to the buyers of today. However, because this model has already been discontinued, changing the look of the B4000 will have to depend on the buyer.
Older models of the B4000 will show their age because of their clumsy handling. Drivers and their passengers can experience bouncing up and down while going over rough roads. In the meantime, the steering wheel vibrates when the truck reaches 70 miles per hour or more.
Engine troubles and TSBs
The owners of truck have encountered several problems with the engine and the manufacturer itself has issued several Technical Service Bulletins (TSBs) concerning these issues. In particular, Mazda has noticed three reasons why the B4000's engine could stall. The first is that it shouldn't be running on reformulated gasoline after a cold start. Another reason could be that there's a build-up of carbon on the EGR valve seat. Finally, the engine could stall because of a sticking idle-air control valve.
Mazda has called for four recalls to certain years and model-variants of its B-Series. B4000s made in 1994 needed their manual-shift parking brakes replaced. Meanwhile vehicles from the same year with flexible holes in their front fuel lines found that the hose cracked easily. Another issue with 1994 B4000s was that the studs attaching their master cylinder to the power brake booster could also break after a long time. Vehicles manufactured on or before December 5, 2002 could also need to come into their dealerships to get a cruise control component replaced in order to prevent the switch from overheating.
My Mazda B4000 sometimes starts with no problem, but when I drive it for a while then turn off the engine for a few hours, it won't start at all. What could be causing this?
First, you need to analyze if your Mazda B4000's engine is even cranking when you try to start it. If it's not, check if the starter has been acting up, like if you are hearing unusual noises or if your truck is cranking but slower than usual. You should also inspect the battery and cables; if any of them have been replaced recently, then it might be defective. You should also determine the battery's state of charge to make sure it's still working. It is also possible that your truck's battery is running down and has a charging problem.
However, if the engine cranks but doesn't start, then it could be a problem with the ignition, fuel, or compression. Since you said that the problem occurs after driving it for a while, then the trouble could be with a failed fuel pump, bad ignition module, or broken overhead timing belt.
I have replaced the radiator of my Mazda B4000 four times and it is still leaking just like the previous three components. The weird thing is the leaking is from different locations and in varying amounts. How can I fix this?
It is possible that the radiators you bought are poor quality or they weren't installed properly. It is also possible that the problem is not the radiator but another component, like a faulty head gasket. This is the most common cause of coolant leakage. To confirm this, you must test the cooling system pressure. If it fails to hold pressure, then there is an internal leak. You can also use a device known as the block tester to diagnose the component. It works by drawing air from the cooling system into a chamber that contains a special leak detection liquid. If the head gasket is indeed leaking, combustion gases drawn in with the air will react with the liquid and cause it to change color.
The air conditioner in my Mazda B4000 shoots out Freon when I turn it on. Why is this happening?
The air conditioning system may be overcharged because you poured in more Freon than recommended. This caused too much head pressure, which forces the air conditioner to shoot out the liquid when it's running. If you are pouring a lot of Freon because the air conditioner is not cooling the cabin, then this might be another issue altogether. You must check the cooling fans on the condenser or radiator if they are running when the air conditioner is switched on. If the fans are working fine, look for any particles that could be blocking the system, such as leaves, bugs, and dirt that would keep air from passing over the condenser and through the air conditioner. If you didn't find any blockage, inspect the cabin air filter to make sure that it is not clogged; if you haven't replaced it in the last 5,000 miles, replace it as soon as possible.