Standard Motor Products FJ504 Injector Review

You need to know what you're doing to install these injectors. Being an amateur it took me about 3 hours. They work great! Removes the rough idle and with the start of a misfire. The truck now starts immediately instead of twice. Drive smoothly now and have improved my fuel economy.

takes time to install and it was slow but it was worth it, the truck has done 200,000 miles and I didn't realize how hard it was before this install and it works great. I had misfire codes that wouldn't clear and replaced everything else by trying. I installed the injectors for about a week, I hope there are no changes in operation. I bought a separate set of gaskets

Wanted to use a brand like ACDelco but the price of this product and the reputation of the brand made me go for the 'cheap' option. this part. It's only been a few months since I installed this part but so far every day and every time I start my truck it runs very smooth and is very powerful. The packaging it came in gives me an idea of the amount of effort that went into making the product itself. I just hope it's built to last because the original unit has been fine so far. I just wanted to…

If you have a 1996-2000 GM truck with a 5.7L engine, you need to buy these fuel injectors. Replaces factory poppet injectors that cause misfire and hard starting. Also, they can spill on you! True plug and play conversion to true traditional multiport injection. Not for beginners to install, but with some knowledgeable help and some YouTube universities, most of which have mechanical knowledge, it can be done. I've made 5 of these and this is the only way to replace the factory injectors. If…

There may be a problem with the block I bought for my 97 k2500 as the cylinders are now flooded with fuel causing a water seal. Will be updated if there is a product or installation issue. It was only installed within a week. Update: After additional verification. The fuel pressure regulator only failed after a week. My 5.7 Vortec had a valve body and I had to haul it home to drain the fuel and the new oil I just changed. As you can see, the 6th cylinder intake pipe is filled with fuel. I hope…