03 santa fe, manual trans, 2.4l 4cyl, will not go past 20 mph

Asked by Feb 03, 2014 at 08:21 PM about the 2003 Hyundai Santa Fe Base

Question type: Maintenance & Repair

Car runs for a couple mins, sluggishly accelerates up to roughly 20 mph, but will not go past.  After it gets up to 20 mph it starts to slow, and shuts off.  will not start again unless left alone for a while.  Its had a check engine light for coils but we replaced those, just have to get the light reset. any suggestions?

14 Answers

45

look @ the ignition module, that is the problem

45

nmm

19,165

Have the codes read again. See if it has set any new ones and post them here.

Thanks for the suggestions. We'll check it out. but while we wait, the check engine light just went out while running, sitting in neutral. A good thing I suppose, but will it still provide a code?

19,165

Yes it will store the codes until cleared.

Awesome, thanks. We have to rent the code reader from autozone tomorrow. it's already been checked out for the night. i'll post the codes when we get em.

19,165

Let us know.

45

dfffgfhhjkl

45

cvbhgnjutfvv

45

dfreecvbnklopp

45

mnbhggfddsa

Ok so we didn't get any codes. But we had a number of sensors come back inconclusive. O2, cat, evap sys and EGR/VVT.

19,165

I think your transmission is going into limp mode. The code scanner you have is not equipped to read transmission codes. You need to take it to a garage that has a scanner that can read them. Post the codes here.

cat converter? plugged fuel filter?

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