That engine does not have an injection pump, it takes high pressure oil to make it run. Glow plugs warm the fuel, etc, but the block heater warms the larger machine. Colder temps require more to start most motors. The relay seemed like an easy item to replace. If there is no power than possible the ignition switch is failing. Once you do get it started, the gray one will be shot within 6 months.
This makes it very cost effective and has been done regularly for years in diesel rigs. This practice creates a serious fire hazard and causes engine performance problems. To tell if your pump is dead you need to dead-head it. Bad glow plugs burned out, coated with carbon, or not receiving proper start-up voltage or a faulty glow plug control module can cause white smoke on engine start up. The unburned fuel particles go out the tailpipe and typically produce a rich fuel smell.
If you can have the truck scanned by a good diesel tech. Treating the engine with the and running it for one full oil change interval should eliminate the problem. If you have these on the same ring, and they are too close to the key cylinder, it can cause a false negative for the programmed keys. If not, I'll see if I know some folks in your area. And was able to blow through the larger of two ports.
Are there any other modifications to the truck remote start, or security system? Have you tried another key? Truck cranks over and with the fuel filter out the bowl fills up with fuel, I replaced the crank sensor, starts right up with a little shot of either then stalls right back out! In fact, temps were 26 degrees a couple of mornings ago and it took no-kidding nearly 20 minutes of fooling around with the starting process to get it started. See attached No start diesel engine diagnostic links. How can I tell if the fuel injector pump has gone out? Good glow plugs will have a resistance between 0. Check all relays and fuses. If it starts up with a radical idle they need new ones. I just got a 95 7. It is not polarized and d … oes not care about negative and positive.
We put a new cam position sensor on it to no avail, and checked the fuel flow and it was fine. White smoke usually occurs when there is not enough heat to burn the fuel. I plan to visit a few mechanics today to find out when I can get the truck in to have the glow plugs checked, etc. Battery seems strong and fuel pump is working, oil was about 2 qts low. If it sits for more than a day or two it will try to start, run a few seconds and then shut down. If you have any questions, feel free to one of our diesel experts. But on that note, what brand did you install? Mine always restarted though without my intervention.
If it does you have an internal leak possiably an injector. I removed what looks like a fuel filter from the fuel rail? You may have to before you can post: click the register link above to proceed. See if you can find someone. If you get infinite resistance on any glow plug, that one is either bad or the connector under the valve cover has come loose. I knew I some bad glow plugs,but it still usually starts. I have also checked all fuses.
There is a fuel filter under the truck coming from the tank with a spin on filter and itlooks ok. Once the engine heats up, about a minute, the heat generated by the high compression in the engine coupled with the heat already produced by the glow plugs and the engine firing will produce combustion without the operation of the glow plugs. Get a helper disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? There are instructions on 7. The glow plugs should be checked individually since they don't usually all fail at once. They are probably rotted and are sucking in air - thus losing your prime. Use synthetic heavy duty diesel engine oil; e. A sensing system determines a cold engine by measuring the temp of the coolant antifreeze in the engine.
Such fluid could cause immediate explosive damage to the engine and possible personal injury. We will see what happens when the outside temps drop again. Again be sure to read some on fusible links. Your trouble starting coinciding with the cold weather most indicates faulty glow plug system. This link should help you test your glow plugs:. When you say it wont start can you hear the starter cranking the engine over or is the vehicle completely dead? If it isn't too much trouble and I can find the tools, I wouldn't mind testing the glow plugs as you described. When was the fuel filter last replaced? There is a filter near the carburetor which the fuel goes through I disconnected it and turned the ignition switch and fuel pumped thriough the line as if itwere being pumped so I assume the fuel pump is working.
Could hear pump run but get no gas. If you unhook your battery, red post first and neg next and wait at least 10 mins. Thanks for the mechanical education. You should do this a couple of times to make sure it consistently makes the connection. In warm weather these glow plugs operate either not at all or very little and engine startup is easy.
Usualy there is a diagram under the hood on a sticker. It does this with a complex, hydraulically actuated injector. Check out some of my other posts if you need more tips and info. The two pins furthest forward and the two pins furthest back are for your glow plugs. If you got a gray one, find a black one. You won't regret either repair.