High Idle

Asked by Jul 02, 2011 at 04:10 PM about the 1987 Dodge Ram 50 Pickup

Question type: Maintenance & Repair

Hey guys,
I have an 87 ram50 4x4 with the 2.6l and about 208000 miles
my issue is i was driving it on a warm day the engine did not over heat but outta the blue the idle jumped up to approx. 1200-1500 rpm.
i have troubleshot it about as much as i know..
i checked the o2 sensor...OK
thermo couple...tested bad replaced no change....new one now test the same as old but tested good before install???
tested TPS......no succesfull test...just like thermo couple..used 3 different meters...
if engine is cold .....for a 90 degree day then when i start it the idle is high and will not drop...ever....
if i unplug the carb electrical the idle drops to normal ...but only on a fresh start
if the engine warms up to normal temp the idle is back at 1200-1500..sometimes 2000..
i am at a loss...
Note this is a manual tranny
i did notice today that the carb numbers do not corrispond with what the chiltons says it should have it says it is a 89 carb.....
the carb was profesionaly rebuilt about 7 years ago .....no issues till now
any help PLEEEAAASEE
this is my only ride and need to move in 3 weeks..so i in a real pickle

2 Answers

15

does it have A/C ?

1 of 1 people found this helpful.
875

the high idle cam for the choke idle is hanging up ,,,,this is common... this was a recall years ago ...just need to do a adjustment to it and you should be fine...

3 of 3 people found this helpful.

Your Answer

Dodge Ram 50 Pickup Experts

  • #1
    Hettboy
    Reputation
    1,260
  • #2
    dodgecummins
    Reputation
    290
  • #3
    d50junky
    Reputation
    140
View All

Related Models For Sale

Used Dodge RAM 150
34 listings
Used Dodge Ram
13 listings
Used Ford F-150
2,317 Great Deals out of 182,094 listings starting at $1,000
Used Chevrolet S-10
8 Great Deals out of 1,217 listings starting at $2,500
Used Toyota Pickup
107 listings starting at $5,499
Used Dodge RAM 250
20 listings
Used Dodge Dakota
109 Great Deals out of 3,697 listings starting at $1,700

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.