Engine Temp Issue?

[Swanner]

So last summer my radiator blew up. Thank god was in a parking lot. Installed a new radiator no issues except for that bottom 1/8 turn quick disconnect hose if you have done one you know what I'm talking about.

So after I replaced the radiator I noticed the engine was running cooler, instead of in the middle of the temp range of the gauge now it's about 1/4 colder, hasnt been a factor till we have gotten some cooler weather here in TX. I noticed my heat in the vehicle isn't hot hot it's just warm. And also don't know if this is related but on cold mornings the truck has a valve ping/slap like the timing is way off when I accelerate fast. Could this be a air versus coolant sensor issue and thermostat issue?

Thanks for your input.

1998 ford Eddie Bauer Expedition 4 x 4

 

[stamp11127]

Easiest thing would be take temp readings of the radiator at the top and bottom after the engine is up to temp. And how long it takes to come up to temp.

Did you flush the system when you changed the radiator?

As a habit I always flush the system, change the thermostat, water pump and hoses when swapping out a radiator.

 

[Swanner]

I did flush didn't change thermostat, having new injectors and coils put in this weekend going to have them change the thermostat. Will keep you updated.

 

[stamp11127]

Why are you replacing the coils and injectors?

 

[Swanner]

Having a miss fire code coming up. once in a while on warm day after driving for a while it starts missing at 60-70 mph all i do is push on the gas petal it does away. truck has 275,000 miles on it only ever replaced one coil on it. injectors original and other coils original. doing plugs, coils and injectors as a tune up. does have a little ruff idle.