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1997 Cummins 12 valve Auto with 275K miles all stock besides intake and 5" exhaust. Truck was driven on the interstate at 80 mph for 2.5 hours. As I pulled off the exit, I heard a noisy clanking from the truck while idling at the stop light. I then pulled over, couldn't see any leaking and...

Hello Folks, I haven't posted here in years, thankfully to a reliable truck. My truck (1997 12 valve 4x4 all stock) sat for a couple months and the battery's were almost dead. Turned over a couple times but no fire. I charged them each overnight, took the truck out and after a mile the GEN...

Temperatures outside between 10 degrees and 0. I pulled the truck out of a heated garage in the morning and had it outside at a jobsite all day into the evening. I tried to start it to get it warming and it would just crank and no fire at all. I then ran an extension cord to the block heater to...

My current oil supplier switched brands and I found a replacement, but realized the oil viscosity was 5w instead of the 15w that I had been using for years. Truck does not get used everyday and has 250k on it. Should I use it or return it?

Interstate batteries are 5 years old. 2 months ago I filled them with distilled water and recharged them to 100%. They last about 3 weeks to a month of normal driving with the few daily start-ups. At 2-3 weeks on the previous charge given, batteries sound drained & labor to turnover engine at...

Last few mornings sounded like batterys going dead as it fired over. This morning only got a couple revolutions, before it stopped cranking. Cleaned all of my corroded battery and starter terminals and still only gives a couple revolutions. Thinking that the interstate batterys are dead, I...

Only at cold start, first one of the day. Happened a week ago, by coincedence I jiggled relay and it started right up, has been running great ever since. Right now no luck. Looked at records, relay has been replaced every year it seems. Both times mech. says relay melted. What can I do to test...

I drove to Denver from WI, last week. Truck ran great, except when I stopped for fuel I needed to give it a little pedal to get it started again. Problem escalated throughout the week and every morning it took several attemps and full pedal to get her to fire. Then, on my way back,1 hour from...

I was pulling a 20ft camper 2. 5hrs north, and an hour and a half into the trip the red (GEN) light appeared in my lower speedo gauge. Is my alternator on the way out? any insight is helpful. Thanks Gabe

When passing or heavy acceleration, transmission won't shift until I let off the throttle. Then it kicks down, but only after I let off. With normal acceleration the trans shifts fine. Any insite?

A friend had 35 miles left to go in fuel in tank, and put 4 gallons of unleaded gas in his tank,... ..... Drain it or can you dilute it by filling it up the rest of the way. Please reply asap, sitting at the pump!

Hard cold starting, replaced melted intake relay. Second one in two years. Shop I was referred to, couldnt tell me why my electrical (lighting) was surging. New batteries a year ago, passenger side battery was dead. Replaced and still surges. Truck runs great, volt meter sits at about 15v. then...

Engine dies as I accelerate away from stop lights. Been battling this for a while, engine would just stall a little before and now it just dies. Usually occurs in stop and go instances. Hwy driving it runs fine! I replaced my rubber supply and return lines, and made sure they were tight. Ideas...

Need to replace supply and return fuel lines, behind engine, I have them from Larry B's and I am getting frustrated trying to get my hands behind the fuel filter to disconnect them. Can anyone offer advise or experience to make this go smoother? thanks Gabe

I have a 12v w/ 200k and love my noisy 2nd gen truck too much to go to a brand new one. Just looking for pros and cons of the 24v and how they are to maintain compared to the 12v.

Engine almost Dies then doesn't start! At start up, enging fires over runs for 5seconds then drops RPMs to the few hundreds for a couple of seconds and then back to normal idle. Any help is appreciated. Gabe Now after letting sit for 8 hrs, truck wouldnt start without my foot on the gas...

20k miles ago, I had a stalling issue and thought it was a bad injector pump, but you guys steered me to adjusting my idle up. Cheap fix, awesome! Well the truck is having similar symptoms again, and my idle is definitely low, so I am going to adjust it again. Is this frequent adjustment normal?

I cant drive 5 miles without encountering this. I know that it is my worn track bar but sounds like Thuren bars are the best. No way to contact Don Thuren from looking at the website. Anybody know where to get one, or should I just go to Napa and get their warranted one. Gabe

Normally when accelerating my automatic trans. shifts into overdrive at 50mph and locks in as I accelerate to 60 :) mph. Periodically when accelerating to 50mph my transmission starts to lock in and then it slips back into a lower gear (higher rpms) and takes a couple of tries to get fully locked in...

I need to do an adjustment, but I have forgotten some of the procedures and specs. I have the tools and some know-how but not all. Please give me direction as to where I can find the resources and info. Thank you. Gabe