Why does engine idle so high at start up?

Asked by ceyote220 Mar 26, 2020 at 08:59 PM about the 1987 Nissan Truck XE Extended Cab SB

Question type: Maintenance & Repair

Just bought 87 hardbody w/ z24 engine.
Engine revs over 4500rpm and won't come
down to normal idle?
Please well informed responses only. I'm not
stupid. I'm pretty dam good mech. Just never
had experience with nissan.
Thanks.

F_O_R answered 4 years ago

Injected or Carb? Vacuum leak?

1 people found this helpful.

Mark helpful

157,855

James answered 4 years ago

Or a stuck IAC (Idle Air Control) valve, if equipped. Hope that helps! Jim

Mark helpful

ceyote220 answered 4 years ago

IAC. Roger that. Thank you sir.

1 people found this helpful.

Mark helpful

157,855

James answered 4 years ago

You're welcome. Glad to help! Jim

Mark helpful

Your Answer:

Why does engine idle so high at start up? 4 Answers

Just bought 87 hardbody w/ z24 engine. Engine revs over 4500rpm and won't come down to normal idle? Please well informed responses only. I'm not stupid. I'm pretty dam good mech. Just never had e...

1987 Nissan Truck XE Extended Cab SB

-

Maintenance & Repair
does the radiator match the make & model of a car or the engine size? 1 Answer

I just got a nissan frontier and found out the engine in it is not the original one, I have pretty much changed everything but the truck still overheats could it be the radiator? The radiator is ab...

Nissan Truck

-

Maintenance & Repair
1997 Nissan XE PU (manual) won't start 1 Answer

1997 Nissan XE pickup (manual) won't start. I have replaced the starter (tested at store) and battery, only getting a clicking (sounds like near the firewall behind the engine so I'm assuming the s...

Nissan Truck

-

Maintenance & Repair
my '96 nissan pickup started running hot and I was not losing fliud. The fan comes on, the oil is not milky so I changed the thermostat. The first day I drove it and ran it for a total of 25 minutes. Temp was fine. Second day drove for 10 minutes and ran hot. Drained and flushed radiator ran hot again after 10 minutes. After it cooled, I did have some water loss. Could this be the water pump or could I have screwed the thermostat installation up? 14 Answers

my '96 nissan pickup started running hot and I was not losing fliud. The fan comes on, the oil is not milky so I changed the thermostat. The first day I drove it and ran it for a total of 25 minutes...

1996 Nissan Truck STD Standard Cab SB

-

Maintenance & Repair
I have a 1980 datsun pickup 720. It starts up sound fine. But when I give it gas, it turns off. It did it a few times before, thought it was a gas problem. But now I Put gas& it overflows. No gas gag 2 Answers

I have a 1980 datsun pickup 720. It starts up sound fine. But when I give it gas, it turns off. It did it a few times before, thought it was a gas problem. But now I Put gas& it overflows. No ga...

1986 Nissan Truck STD 4WD Standard Cab SB

-

Maintenance & Repair

Looking for a Used Truck in your area?

CarGurus has 26 nationwide Truck listings and the tools to find you a great deal.

Own this car?

Share your experience with others.

1987 Nissan Truck

Write a car review

Review another car

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. Content will be removed if CarGurus becomes aware that it violates our policies.

Why does engine idle so high at start up?

4 Answers

Your Answer:

Looking for a Used Truck in your area?

Own this car?

Share your experience with others.

Shortcuts

Search Nissan Truck Questions

CarGurus Experts

Know more, shop wisely

Related Models For Sale

Used Cars for Sale

Why does engine idle so high at start up?

4 Answers

Your Answer:

Related Questions