Is it safe to drive with injector knock?
Is it safe to drive with injector knock?
While fuel injector problems usually give warning, driving your vehicle for a long time with a clogged or faulty fuel injector can cause problems. Increased fuel consumption. A noticeable increase in tailpipe smoke and emissions. Rough idle and hesitation during acceleration.
Are there any issues with the LB7 injectors?
The original injectors that came in these trucks had all sorts of issues with cracking. The symptoms are constant smoke at idle and gaining fuel in the oil. Unfortunately the best thing to do if you have this problem is to replace the whole set at once.
When do you know you have a problem with an injector?
Once the problem injector (s) are confirmed (by checking the balance rates and/or capping the feed line to injectors one by one, or bench testing), it’s time to get it fixed. As we’ve written previously, we test the heck out of injectors with state-of-the-art equipment you won’t find anywhere else.
What causes the injector on a Duramax to leak?
Leaking Injectors—LB7 One thing the ’01-’04 LB7 Duramax is notorious for is injector failure. The two primary failure points of the factory injectors are internal cracking of the injector body itself and corrosion-induced failure of the internal ball seat.
What are the problems with the Duramax LB7?
One thing the ’01-’04 LB7 Duramax is notorious for is injector failure. The two primary failure points of the factory injectors are internal cracking of the injector body itself and corrosion-induced failure of the internal ball seat.
The original injectors that came in these trucks had all sorts of issues with cracking. The symptoms are constant smoke at idle and gaining fuel in the oil. Unfortunately the best thing to do if you have this problem is to replace the whole set at once.
What to do if your LB7 truck is cracking?
Unfortunately the best thing to do if you have this problem is to replace the whole set at once. Injector replacement on the LB7 truck is rather labor intensive and just changing one is usually not worth the risk for the labor costs. The new injectors available from us and others are updated and do not have the cracking issue.
Why is the head gasket on my LB7 not working?
This allows the layers of the gasket to separate which lets combustion pressure into the coolant system. The pressure will cause the coolant to be pushed out the coolant overflow. You can check for a head gasket issue by squeezing the top radiator hose when the engine is running and right after you shut it off.
What should I use to fix my LB7 water pump?
We recommend using ARP head studs for a high clamp load along with one of our head gasket kits to fix it. It is extremely important to have the heads surfaced flat before putting the truck back together. Water Pumps – Another issue with the LB7 Duramax is the water pump leaking.
