rev limiter

Cynthia Fisher

Asked by Oct 12, 2016 at 08:26 PM about the 1991 Dodge RAM 250 2 Dr STD Standard Cab LB

Question type: Maintenance & Repair

so this is a project of mine and when i got it it did not run. fast forward to
today and the truck is running idles good and then when i open the throttle it
revs up till i get to about quarter throttle and then it surges no matter how
much more the throttle is opened. once i come back to 1/4 throttle it smooths
back out i have watched the injectors (brand new) as the surging occurs and
they have a good spray right up untill the surging starts then they just
intermittently spray like its trying to lean out the mix when it should be adding
more fuel. i have pulled all codes and repaired/ replaced any and all sensors
fuel pump/filter all relays and the injectors as noted above im  reaching my
wits end and struggling to find the why to this issue any advice is appriceated

2 Answers

Cynthia Fisher

as a side note the engine sounds like it is hitting a rev limiter but why at such a low rpm ?


Have you installed a fuel pressure gauge on the rail to see what the pressure is at idle and when you rev it up

Your Answer

Add photo

Related Questions

Search Dodge RAM 250 Questions

Dodge RAM 250 Experts

#1 Jason Jones
Jason Jones
Reputation 70
#1 Tom Demyan
Tom Demyan
Reputation 70
#3 BoholMark
Reputation 60
View All

Related Models For Sale

Used Ford F-250"
609 listings starting at $3,995
Used Ford F-150"
3,162 Great Deals out of 216,425 listings starting at $1,000
Used Ford F-350"
373 listings
Used Chevrolet C/K 2500"
283 listings starting at $1,995