1992RB Posted March 19, 2016 Share Posted March 19, 2016 Have a 98 Cl713, and whilst driving the engine power cuts out, kicks in, cuts out, and im left playing with the fuel pedal to try and bring he back to life in those few seconds. any ideas? could it be a sending unit for the fuel? or maybe the pedal entirely needs to be changed? any help is much appreciated.. -mark Quote Link to comment https://www.bigmacktrucks.com/topic/44390-1998-cl713-engine-inconsistant/ Share on other sites More sharing options...
RedBullDog Posted March 19, 2016 Share Posted March 19, 2016 If you don't work the pedal, does it return to idle or die completely? Another thing to look at is power and grounds to the ECM. Quote Link to comment https://www.bigmacktrucks.com/topic/44390-1998-cl713-engine-inconsistant/#findComment-327898 Share on other sites More sharing options...
br549 Posted March 19, 2016 Share Posted March 19, 2016 Does it put the yellow code light on? Does it do it in cruise control, if not it could be fuel pedal. Need to find code first. Quote Link to comment https://www.bigmacktrucks.com/topic/44390-1998-cl713-engine-inconsistant/#findComment-327899 Share on other sites More sharing options...
theakerstwo Posted March 19, 2016 Share Posted March 19, 2016 Start with connecting a good pressure gauge and a long hose up to the fuel system and take it down the road maybe loaded and watch the fuel pressure then come back and tell us what you see. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/44390-1998-cl713-engine-inconsistant/#findComment-327901 Share on other sites More sharing options...
fjh Posted March 21, 2016 Share Posted March 21, 2016 On 3/19/2016 at 0:29 PM, theakerstwo said: Start with connecting a good pressure gauge and a long hose up to the fuel system and take it down the road maybe loaded and watch the fuel pressure then come back and tell us what you see. Yup fuel pump gears have been a problem in the past! As long as you got no fault light ! I second Glens Comment! Quote Link to comment https://www.bigmacktrucks.com/topic/44390-1998-cl713-engine-inconsistant/#findComment-328019 Share on other sites More sharing options...
1992RB Posted March 24, 2016 Author Share Posted March 24, 2016 Hey, thanks for all the help! the elec. Malfunction light comes on every so often but doesnt wanna stick around. we've changed the injectors & pumps to see if this straightens it out. we had her plugged in, and a fault for injector 3 was there... but not sure if its the enjector, or a harness issue. -Mark Quote Link to comment https://www.bigmacktrucks.com/topic/44390-1998-cl713-engine-inconsistant/#findComment-328328 Share on other sites More sharing options...
fjh Posted March 24, 2016 Share Posted March 24, 2016 Ya need to see what codes ya got! No point in throwin parts at it till ya know what your shooten at! Point being here you need to start ruling stuff out ! IT Could be the throtle pedal glitchin , CODES or WHAT is the fuel pressure running at? put a guage in and drive Is it consistent? you could have a plugged tank vent . a bad drain back valve! floatie in the fuel tank ,a flapper in a fuel line ! OR And Don't laugh! Seen this at least three times > Rocks in a Primary filter elbow!!! Running out of fuel under load! Quote Link to comment https://www.bigmacktrucks.com/topic/44390-1998-cl713-engine-inconsistant/#findComment-328363 Share on other sites More sharing options...
hatcity Posted March 24, 2016 Share Posted March 24, 2016 this might be way off, BUT, check under the throttle pedal. I was having similar issues and found the plastic pin was broken. replaced with a bolt. it is a plastic roll pin type that connects the pedal to the roller. flip it over and you will see it Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment https://www.bigmacktrucks.com/topic/44390-1998-cl713-engine-inconsistant/#findComment-328367 Share on other sites More sharing options...
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