Question about 1985 Ford F 250

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97 ford 7.3 diesel idles rough and has no power when driving. theres no engine codes all filters are changed, turbo is good. any ideas?

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Check you fuel heater circuit, in the bottom of your fuel bowl, if it is damaged the computer will not let the truck run right, and will not set any codes.

Posted on Jul 22, 2009

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SOURCE: 97 Ford Courier diesel non

Run a fuel pressure test,may have a bad fuel injecter.

Posted on Feb 27, 2011

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Diesel. Reduce power lite turned on. Shut off engine and started back up - lite is off. Can it be driven?


Jerry, Drive to a good shop. So many things can cause reduced power light unfortunately. The first step would be to get the truck hooked up to a scanner/computer and have the computer scanned for trouble codes. One thing that you could try is to drain the water from the water separator that is mounted on the frame under drivers front door. If the PCM picks up on water, power is reduced until water is removed/drained. It could be an exhaust sensor that is reading faulty. Unfortunately from here its impossible to tell you exactly what the fault is because there are just so many engine sensor inputs that could cause your problem. Check the attached links, forums,instruction and guides, Good luck
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So I have a ford 97 e350 ambulance. I finally got the engine codes they read p0308 and p1662. Showed up at the same time. The truck ran rough, turned engine 9ff, back on, idled fine, and then a few mi utes...


cylinder 8 is missing combustion which caused the o2 code the black box will not cause a specific cylinder to miss, there fore a fuel distribution problem is evident, the injector on eight is proablly the culprit the #8 cylinder is the last cylinder to be fed a fuel, pressure test is needed to determine if the fuel pump is strong enough to deliver diesel, ambulance spend a lot of time idling causing fatigued fuel pumps

Nov 08, 2013 | Cars & Trucks

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Jaguar x type 2.0 turbo diesel 2006. Car was smoking really badly in all gears black like sut, really rough idling. And sounds like it has breathing problems almost like it's not running on all cylinders....


I have exactly the same problem on my x type 2.0 turbo diesel 2006. Problem occurred all of a sudden while driving, was told to change turbo and EGR valve, but same problem. Took to dealers and they advised because it has so many error faults coming from the engine it would be cheaper to change the engine. Will be trying this unless I can get some other advise.

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MY 2006 6 LITER DESIEL IDELS AND RUNS ROUGH WHEN I FIRST START IT UNTIL IT WARMS UP THEN IT JUST HAS A SLIGHT MISS. I PREVIOULY HAD LOW TURBO BOOST AND A DIRTY EGR VALVE I CORRECTED THE PRBLEMS AND CLEARED...


Your pre heating circuit may not be working properly. It should cycle for a bit when you first start the engine. Also it may be a good idea to change the fuel filter. Haynes has a Diesel Engine Repair Manual, part # 10330 that may prove to be a help for you. Hope this helps.

Mar 14, 2010 | 2006 Ford F-250 Super Duty

2 Answers

I have a 2003 ford f350 turbo diesel recently it


Hey man I had the same problem it is the fuel pressure control sensor, you can buy one on ebay for about 100.00 I did and problem solved

Nov 08, 2009 | 2003 Ford F350 Super Duty DRW SuperCab

1 Answer

Hi i have a 97 ford mondeo 1.8td and it feels very under powered and i cant feel the turbo cut in atall but can hear it whistle on changing gear.can you help please?


I had a similar problem in my Mondeo 1.8 TD a few years ago and this was cured by changing the engine oil and filter to the correct type.

I had used the special Duckhams 10w-40w Turbo Diesel (or was it 15w-40w?)  oil but once I changed it to the correct Ford 5w-30w (Formula-E ) ordinary oil, the turbo worked a treat every time.( I understand now that there is an even "thinner" option that works even better so worth checking ....Something like a 1w-30w )

A strange answer I know, but true

The only reason I used the Duckhams was because the chap in Halfords said it was the best one for a Turbo Diesel

Oct 12, 2009 | 1997 Ford Escort

2 Answers

97 F350 diesel check engine light stays on and is running rough?


Ok, lets take this from the top. I have a 97 f250 diesel. In mid may mine did the same thing. It's either one of two things. You have under valve cover harnesses (uvc). They slide in under your valve covers, you will see two wiring harnesses on the outside of the valve cover gaskets on either side of the block. Ok, it IS possible one of these slipped out of place and killed two of your injectors, causing the horrible running/ low idle/no power/ sounds like the truck is going to stall symptoms. The easiest way to check that is to unplug the wires while the truck is running and see if it kills the engine, if it doesen't unplug the other one on the same side of the valve cover. If both of these don't cause any change then you have a bigger problem, the IDM (Injector drive module).

FAIR WARNING: When you unplug the wires with the truck on it is extremely dangerous, it is 110 volt feed. It can kill you.

OK, the IDM is a silver box, 8"x10" approx dimensions, located on the driver side under the hood, over top the front tire. If you take the wires you unplugged and take a multi meter to them and they are dead, you have a bad IDM. This was the case with my truck. Ford designed the IDM to have a hole in the side to allow condensation to escape from it, unfortunately, this allows water inside and will short out resistors and practically kill half of your engine. Buy a new IDM on ebay for about $380. It takes 5 minuts to put it in.

I hope this helps you out man.

Aug 28, 2009 | 1990 Ford F350

1 Answer

Where and how to change fuel filter on 1996 Ford F350 7.3 turbo disel truck? Is there more than one fuel filter?


Please don't forget to rate!!!!

Diesel Engines The 6.9L and 7.3L diesel engines use a one-piece spin-on fuel filter. Do not add fuel to the new fuel filter. Allow the engine to draw fuel through the filter.
  1. Remove the spin-on filter by unscrewing it counterclockwise with your hands or a strap wrench.
  2. Clean the filter mounting surface.
  3. Coat the gasket or the replacement filter with clean diesel fuel. This helps ensure a good seal.
  4. Tighten the filter by hand until the gasket touches the filter mounting surface.
  5. Tighten the filter an additional 1⁄2 turn. NOTE: After changing the fuel filter, the engine will purge the trapped air as it runs. The engine may run roughly and smoke excessively until the air is cleared from the system.

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Aug 27, 2009 | 1996 Ford F350 Crew Cab

5 Answers

Loss of power 97 7.3 powerstroke. Seem like its hitting a governor or not getting enough fuel. Changed fuel supply pump but still not fixed. have a black and decker code reader that shows no codes. any...


I know this sounds basic but check the oil level, the oil actuates the fuel injectors on these engines. If you had the oil changed I've heard of places only putting 5qts back in, these engines require 15-16 quarts.

Aug 05, 2009 | Ford F-250 Cars & Trucks

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